Best PC Power Supplies Under $500 in 2026: 14 Picks Ranked by Specs
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Finding the right PC power supply under 500 requires matching electrical capacity and chassis clearance to your setup. To help you choose, this ranking compares 14 models based strictly on specifications published on their listings.
The ASUS ROG Thor 1000W Platinum III PSU earns the top rank by combining 1000W delivery with a movable OLED display across a 7.48-inch frame. This guide helps you identify the exact wattage, efficiency tier, and physical case dimensions you need for your PC build.
Quick picks
The best fit for you
- You want live wattage tracking on your power supply ASUS ROG Thor 1000W Platinum III PSU A movable OLED display provides direct real-time power monitoring alongside 1000W of high-capacity output.
- You build an extreme rig with multiple modern GPUs Thermaltake Toughpower TF3 1650W Titanium PSU It supplies 1650W with 80 Plus Titanium efficiency and dual PCIe 5.1 12V-2x6 connectors.
- You want a fully modular 750W gaming supply MSI MAG 750W Gold Modular Power Supply It offers 750W output, 80 Plus Gold efficiency, and a native 12V-2x6 connector for ATX 3.1 systems.
- You need 1200W power backed by Japanese capacitors EVGA Supernova 1200W Platinum Fully Modular PSU It features 1200W capacity, 80 Plus Platinum efficiency, and Japanese capacitors with a 10-year warranty.
Our 14 picks
ASUS ROG Thor 1000W Platinum III PSU
Best for: Real-time power monitoring and high-demand GPUs
- Wattage
- 1000W
- Dimensions
- 7.48 × 5.91 × 3.39 inches
- Weight
- 5.22 pounds
View on Amazon: ASUS ROG Thor 1000W Platinum III PSU (paid link)
The ASUS ROG Thor 1000W Platinum III PSU provides 1000W of output with GPU First voltage stabilization and an integrated magnetic OLED display. Its aluminum chassis features built-in ROG heatsinks and a double ball bearing fan with Turbo mode. Measuring 7.48 inches long, this unit suits you if you run high-demand components and need direct, real-time power tracking visible inside your case.
Pros
- Magnetic OLED display shows real-time wattage and mounts to either side
- GPU First intelligent voltage stabilizer monitors graphics card delivery
- Double ball bearing fan designed for extended lifespan
- Aluminum chassis with integrated ROG heatsinks and Turbo cooling mode
Cons
- Extended 7.48-inch depth demands extra clearance in compact enclosures
- Total weight exceeds 5.2 pounds
Good fit if
- You want real-time wattage tracking visible directly on the chassis
- You run a demanding graphics card requiring targeted voltage stabilization
- You have a computer case that accommodates a 7.48-inch power unit
Skip if
- You build in a compact case with limited depth behind the shroud
- You do not require an OLED display for hardware monitoring
Verdict: ASUS ROG Thor 1000W Platinum III PSU pairs high-capacity 1000W delivery with a movable OLED display for direct power monitoring. Its specialized GPU stabilization and 7.48-inch footprint make it ideal for roomy, high-performance setups.
EVGA Supernova 1200W Platinum Fully Modular PSU
Best for: high-wattage multi-GPU setups requiring Platinum efficiency
- Wattage
- 1200W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 8 × 4 × 6 inches
View on Amazon: EVGA Supernova 1200W Platinum Fully Modular PSU (paid link)
The EVGA Supernova 1200W Platinum Modular PSU delivers 1200 watts of continuous power with 80 PLUS Platinum efficiency and a fully modular cable design. It features 100% Japanese capacitors, ECO Mode fan control, and a 140mm double ball bearing fan to manage cooling. If you run multiple graphics cards via SLI or Crossfire and need a high-wattage unit backed by a 10-year warranty, this fits your system.
Pros
- 80 PLUS Platinum certified efficiency
- 1200W output with fully modular cabling
- 100% Japanese capacitors
- 140mm double ball bearing fan with ECO Mode
- 10-year warranty
Cons
- Long 8-inch chassis limits clearance in compact cases
- Heavy 9-pound total weight
Good fit if
- You need 1200W of power with 80 PLUS Platinum efficiency.
- You run multi-GPU configurations using SLI or Crossfire.
- You want fully modular cabling backed by a 10-year warranty.
Skip if
- You have a compact case that cannot accommodate an 8-inch long power supply.
- You need a lightweight power supply for a portable build.
Verdict: EVGA Supernova 1200W Platinum Modular PSU delivers high-efficiency 1200W power backed by Japanese capacitors and a 10-year warranty. Its large 8-inch frame fits full-size builds that need robust multi-GPU support.
EVGA SuperNOVA 1600W 80 Plus Titanium PSU
Best for: high-wattage systems needing Titanium-rated efficiency
- Wattage
- 1600W
- Efficiency Rating
- 80 PLUS Titanium
- Modularity
- Fully Modular
- Fan Size
- 140mm
- Warranty
- 10 Year
- Dimensions
- 3.4 × 14.5 × 6 inches
View on Amazon: EVGA SuperNOVA 1600W 80 Plus Titanium PSU (paid link)
The EVGA SuperNOVA 1600W Titanium Power Supply delivers 1600 watts of continuous power with 80 PLUS Titanium efficiency, reaching up to 94 to 96 percent efficiency under typical loads. It features a fully modular design, a 140mm double ball bearing fan with an ECO mode, and a 10-year warranty. This heavy unit suits you if you operate multi-GPU configurations or demanding workstations that require extreme wattage, complete cable management, and top-tier power efficiency.
Pros
- 80 PLUS Titanium certified with 94% to 96% efficiency under typical loads
- 1600 watts of continuous output with fully modular cabling
- 140mm double ball bearing cooling fan with ECO mode
- Comprehensive protection suite including OVP, UVP, OCP, OPP, SCP, and OTP
- 10-year warranty backed by a 100,000-hour MTBF rating
Cons
- Heavy chassis weighing 14.5 pounds
- Large physical footprint measuring 14.5 inches wide by 6 inches high
Good fit if
- You need 1600 watts of capacity for multi-GPU setups or high-draw workstations.
- You want 80 PLUS Titanium efficiency to minimize power loss under typical loads.
- You prefer fully modular cables to simplify interior case routing.
Skip if
- You have a compact case unable to accommodate a 14.5-inch wide power supply.
- You run a standard single-GPU system that does not require 1600 watts.
Verdict: EVGA SuperNOVA 1600W Titanium Power Supply delivers high-capacity 1600-watt output with 80 PLUS Titanium efficiency and comprehensive electrical protections. It is designed for demanding multi-GPU configurations and heavy workloads that require fully modular cabling.
EVGA Supernova G2 1300W Power Supply
Best for: high-wattage builds requiring large chassis clearance
- Wattage
- 1300W
- Dimensions
- 6 × 8 × 4 inches
- Weight
- 7 pounds
View on Amazon: EVGA Supernova G2 1300W Power Supply (paid link)
The EVGA Supernova G2 1300W Power Supply provides up to 1300W of total output for your power-hungry PC hardware. It supports dual input voltages of 110V AC and 220V AC for standard electrical systems. You get dedicated output delivering 24A on both the 3.3V and 5V DC rails. At 7 pounds and 8 by 6 by 4 inches, you need adequate chassis space for this unit.
Pros
- 1300W total output capacity
- Dual 110V AC and 220V AC input support
- 24A rating on both 3.3V and 5V DC rails
Cons
- Substantial 7-pound total weight
- Large physical footprint measuring 8 by 6 by 4 inches
Good fit if
- You need 1300W of continuous power delivery for demanding components.
- You require 24A current capacity across 3.3V and 5V rails.
Skip if
- You have a compact case that cannot fit an 8-inch wide power unit.
- You need a lightweight power supply under 7 pounds.
Verdict: EVGA Supernova G2 1300W Power Supply delivers 1300W of total capacity with 24A minor rails for heavy-duty systems. Its 7-pound weight and 8-inch width require a case with substantial mounting space.
ASUS ROG Thor Platinum III 1200W PSU
Best for: High-wattage gaming builds needing real-time power monitoring
- Wattage
- 1200W
- Efficiency Rating
- 80 PLUS Platinum
- Modularity
- Modular
- ATX Version
- ATX 3.1
- Warranty
- 10-year
- Recommended Use
- Gaming
View on Amazon: ASUS ROG Thor Platinum III 1200W PSU (paid link)
The ASUS ROG Thor Platinum III is a 1200W ATX 3.1 power supply built with GaN MOSFETs and an 80 Plus Platinum efficiency rating. You get a magnetic real-time OLED power display that mounts on either side, plus dual-ball bearing fan cooling and etched modular cables. At 7.48 inches long, it suits builders who want high wattage, modern hardware regulation, and direct chassis-level wattage monitoring for high-demand gaming rigs.
Pros
- 80 Plus Platinum certified with GaN MOSFET design
- ATX 3.1 compliant and PCIe 5.0 ready
- Magnetic OLED display tracks real-time wattage draw
- GPU-First voltage sensing stabilizes power delivery
Cons
- Long 7.48-inch chassis requires extra clearance in compact ATX cases
- No passive zero-RPM silent fan mode listed in specifications
Good fit if
- You need 1200W of power with ATX 3.1 and PCIe 5.0 compliance
- You want to monitor real-time system power draw through an integrated OLED display
- You prefer modular cables and an 80 Plus Platinum efficiency rating
Skip if
- You have a compact case with less than 7.5 inches of clearance for the power supply
- You need a standard power supply without visual extras like displays or RGB lighting
Verdict: ASUS ROG Thor Platinum III 1200W ATX 3.1 PSU delivers 80 Plus Platinum efficiency, advanced GaN architecture, and integrated OLED power tracking. It gives modern gaming builds stable power delivery provided your PC case can accommodate its 7.48-inch depth.
Corsair HX1500i 1500W Platinum ATX 3.1 PSU
Best for: high-draw systems needing ATX 3.1 support
- Wattage
- 1500 Watts
- Efficiency Rating
- 80 Plus Platinum
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- Fan Size
- 140mm
- PCIe Version
- PCIe 5.1
View on Amazon: Corsair HX1500i 1500W Platinum ATX 3.1 PSU (paid link)
The Corsair HXi 1500W Platinum ATX 3.1 PSU is a high-output, fully modular power supply for power-heavy builds. It delivers 1500 watts of continuous power with 80 Plus Platinum efficiency. ATX 3.1 and PCIe 5.1 standards resist transient power spikes. A 140mm fluid dynamic bearing fan enables Zero RPM mode under low loads. iCUE software allows toggling single to multi-rail OCP. This unit suits you if you need extreme capacity.
Pros
- 1500W capacity with 80 Plus Platinum efficiency
- ATX 3.1 and PCIe 5.1 compliant design
- 140mm fluid dynamic bearing fan with Zero RPM mode
- Software-toggled single to multi-rail overcurrent protection via iCUE
Cons
- 7.87-inch length requires a spacious PC case
- Full feature set relies on installing Corsair iCUE software
Good fit if
- You need 1500 watts of high-efficiency power for heavy workloads.
- You require ATX 3.1 and PCIe 5.1 compliance for modern hardware.
- You want digital control over fan curves and rail protection.
Skip if
- You have a compact chassis that cannot clear a 7.87-inch PSU.
- You prefer hardware-only operation without desktop software monitoring.
Verdict: Corsair HXi 1500W Platinum ATX 3.1 PSU delivers massive capacity and modern transient spike protection. Its software-driven rail configuration and quiet fan curve make it an excellent high-wattage choice.
Seasonic PRIME 1600W Platinum ATX 3.1 PSU
Best for: AI workstations and dual-GPU systems
- Wattage
- 1600W
- Efficiency Rating
- 80 PLUS Platinum, Cybenetics Titanium
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135 mm
- PCIe Version
- PCIe 5.1
View on Amazon: Seasonic PRIME 1600W Platinum ATX 3.1 PSU (paid link)
The Seasonic PRIME 1600W ATX 3.1 Power Supply delivers massive capacity for heavy-duty setups like AI workstations. You get 1600W of total output, dual native 12V-2x6 connectors for PCIe 5.1 hardware, and 100% Japanese capacitors. It holds both Cybenetics Titanium and 80 PLUS Platinum certifications for high efficiency. Its 135 mm fan features hybrid control to balance cooling and acoustics in large desktop builds.
Pros
- 1600W output handles demanding multi-GPU or AI workstation loads
- Dual native 12V-2x6 connectors support ATX 3.1 and PCIe 5.1 standards
- Certified for 80 PLUS Platinum and Cybenetics Titanium efficiency
- Hybrid fan control with a 135 mm fluid dynamic bearing fan
- Internal construction uses 100% Japanese capacitors
Cons
- Long 8.3-inch chassis requires substantial case clearance
- Heavy 13-pound unit adds significant weight to your build
Good fit if
- You need 1600W of power for high-draw hardware such as AI workstations.
- You run modern GPUs that require dual native 12V-2x6 PCIe 5.1 connectors.
- You have a full-size PC case that fits an 8.3-inch long power supply.
Skip if
- You use a compact chassis with limited PSU compartment space.
- You build a standard single-GPU system requiring far less than 1600W.
Verdict: Seasonic PRIME 1600W ATX 3.1 Power Supply provides immense 1600W output and dual native 12V-2x6 connectors for high-end workstations. It is a capable option if your enclosure can accommodate its 8.3-inch length.
NZXT C1000 1000W ATX 3.1 Power Supply
Best for: quiet 1000W ATX 3.1 gaming builds
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Gold, Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135mm
View on Amazon: NZXT C1000 1000W ATX 3.1 Power Supply (paid link)
The NZXT C1000 is an ATX 3.1 compliant, fully modular power supply delivering 1000W of power. It includes a native 12V-2x6 connector rated for up to 600W, suited for modern graphics cards. It holds 80 PLUS Gold and Cybenetics Gold efficiency certifications, paired with a Cybenetics A noise rating. A 135mm fluid dynamic bearing fan runs silently under 50% load, making this unit practical if you want quiet, high-wattage ATX 3.1 operation.
Pros
- ATX 3.1 compliance with native 12V-2x6 connector delivering up to 600W
- 135mm fluid dynamic bearing fan with Zero Fan Mode under 50% load
- Dual 80 PLUS Gold and Cybenetics Gold efficiency ratings
- Cybenetics A noise level certification
Cons
- Gold efficiency rating ranks below Platinum and Titanium models
- 1000W capacity offers less headroom than 1200W to 1650W alternatives
Good fit if
- You need an ATX 3.1 power supply with a 600W 12V-2x6 connector for modern GPUs.
- You want silent operation at low to medium loads via a 50% Zero Fan threshold.
- You prefer a fully modular layout built with 100% Japanese capacitors.
Skip if
- You require more than 1000W of capacity for ultra-high-draw configurations.
- You want Platinum or Titanium levels of energy efficiency.
Verdict: NZXT C1000 1000W ATX 3.1 Power Supply delivers quiet, fully modular power with native 12V-2x6 support and reliable 1000W capacity. Its Gold-tier efficiency and Cybenetics A noise profile make it a practical standard for modern gaming systems.
MSI MAG 750W Semi-Modular PSU
Best for: 750W ATX builds requiring 80 Plus Bronze
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Bronze
- Modularity
- Semi-Modular
- Fan Size
- 120mm
- Warranty
- 5 Year
- Form Factor
- ATX
View on Amazon: MSI MAG 750W Semi-Modular PSU (paid link)
The MSI MAG 750W Semi-Modular PSU is an ATX power supply featuring an 80 Plus Bronze efficiency rating and a DC-DC circuit design. You get 750 watts of power, an active PFC design, and a 120mm low-noise cooling fan. The semi-modular setup provides detachable secondary cables for cleaner case routing. Built-in industrial protections include OVP, OCP, OPP, OTP, and SCP, supported by a 5-year warranty.
Pros
- 80 Plus Bronze efficiency certification
- DC-DC circuit design with active PFC
- Comprehensive protection suite: OVP, OCP, OPP, OTP, and SCP
- Five-year warranty coverage
Cons
- Semi-modular cabling rather than fully modular
- Lower efficiency rating than 80 Plus Gold or Platinum options
Good fit if
- You need 750 watts of power for an ATX system.
- You want standard industrial protections including OTP and SCP.
- You prefer semi-modular cabling with a 120mm low-noise fan.
Skip if
- You need a fully modular cable design.
- You require 80 Plus Gold, Platinum, or Titanium efficiency ratings.
Verdict: MSI MAG 750W Semi-Modular PSU delivers 750 watts of output with 80 Plus Bronze efficiency and essential industrial safeguards. It provides a practical ATX power solution backed by active PFC and a 5-year warranty.
Cooler Master MWE Gold 850W Fully Modular PSU
Best for: multi-system builds needing 850W Gold efficiency
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Full Modular
- Fan Size
- 120mm
- Warranty
- 5-Year
- Dimensions
- 5.5 × 5.9 × 3.38 inches
View on Amazon: Cooler Master MWE Gold 850W Fully Modular PSU (paid link)
This is an 850-watt ATX power supply configured in a multipack. It delivers 80 Plus Gold efficiency with up to 90 percent energy conversion. The fully modular design uses flat black cables, and it includes two EPS connectors for motherboard power. Rated for operation up to 50 degrees Celsius, it suits your multi-system deployments or standard ATX builds that need reliable 850-watt delivery.
Pros
- 80 Plus Gold efficiency rating reaching 90 percent
- Fully modular cabling with flat black cables
- Rated for ambient operating temperatures up to 50°C
- Includes two EPS connectors for motherboard power
Cons
- Supplied as a 5-unit bulk pack
- 850-watt capacity is lower than 1000W+ options on the list
Good fit if
- You need multiple 850W ATX units from a single bundle.
- You want fully modular flat cabling to minimize case clutter.
- You run systems in ambient environments reaching up to 50°C.
Skip if
- You only need a single power supply.
- You require more than 850 watts of continuous output.
Verdict: Cooler Master MWE Gold 850W Fully Modular PSU delivers 80 Plus Gold efficiency and 50°C thermal resilience. It provides fully modular cabling with dual EPS connectors for standard ATX configurations.
ASUS ROG Thor 1000W Platinum III PSU
Best for: real-time power monitoring in spacious cases
- Wattage
- 1000W
- Dimensions
- 7.5 × 5.9 × 3.3 inches
- Weight
- 5.2 pounds
View on Amazon: ASUS ROG Thor 1000W Platinum III PSU (paid link)
The ASUS ROG Thor 1000W Platinum III PSU provides 1000W of output with GaN MOSFET technology and an aluminum enclosure. You get a magnetic OLED display that monitors live power draw and swaps sides for fan-up or fan-down mounting. At 7.5 inches long, it requires ample chassis clearance. This unit suits you if you need steady GPU voltage stabilization and direct wattage readouts for a high-demand gaming setup.
Pros
- Magnetic OLED display shows real-time wattage and mounts on either side
- GaN MOSFET design delivers up to 30 percent higher power efficiency
- GPU-First voltage stabilizer enhances graphics card voltage delivery
- Aluminum enclosure paired with ROG heatsinks for thermal control
Cons
- Long 7.5-inch chassis requires extra clearance in compact cases
- Heavy 5.2-pound construction adds weight to the build
Good fit if
- You want a swappable OLED screen to track power draw in real time
- You run a high-draw graphics card that benefits from dedicated voltage sensing
- You have a PC case with at least 7.5 inches of power supply clearance
Skip if
- You need more than 1000W of output for multi-GPU configurations
- You build inside a compact case with restricted compartment depth
Verdict: ASUS ROG Thor 1000W Platinum III PSU delivers clean power delivery and real-time wattage tracking via an adaptable OLED display. Its 7.5-inch footprint makes it best suited for spacious enclosures.
FSP Mega Ti 1650W Titanium Power Supply
Best for: dual-GPU ATX 3.1 extreme power builds
- Wattage
- 1650W
- Efficiency Rating
- 80 PLUS Titanium, Cybenetics Titanium
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6, PCIe 6+2-pin
- Fan Size
- 135 mm
View on Amazon: FSP Mega Ti 1650W Titanium Power Supply (paid link)
The FSP Mega Ti 1650W Titanium Power Supply delivers high wattage for demanding hardware setups. You get 80 PLUS Titanium efficiency with at least 94 percent efficiency at typical loads, alongside full ATX 3.1 compliance. It includes two native PCIe 12V-2x6 connectors for modern graphics cards and a 135 mm fan with zero RPM mode. This suits you if you need clean, heavy-duty power delivery.
Pros
- 1650W capacity with 80 PLUS and Cybenetics Titanium efficiency
- Dual native PCIe 12V-2x6 connectors plus six PCIe 6+2-pin ports
- ATX 3.1 compliant with support for up to 200% power excursion
- 135 mm FDB fan with semi-fanless Zero RPM mode under 40% load
Cons
- Chassis length of 180 mm requires extra space in PC cases
- Heavy 9-pound unit weight
Good fit if
- You run high-end hardware requiring dual native PCIe 12V-2x6 power connections.
- You need 1650W of output with Titanium-grade power efficiency.
- You prefer zero fan noise during light loads under 40%.
Skip if
- You use a compact chassis that cannot clear a 180 mm long power supply.
- You only require standard wattage for a single mid-tier GPU.
Verdict: FSP Mega Ti 1650W Titanium Power Supply provides top-tier Titanium efficiency and dual native 12V-2x6 connections for heavy multi-GPU systems. Its 180 mm chassis requires substantial case room, but its electrical specs deliver massive headroom.
Thermaltake Toughpower TF3 1650W Titanium PSU
Best for: multi-GPU builds needing high Titanium-rated wattage
- Wattage
- 1650W
- Efficiency Rating
- 80 Plus Titanium
- Modularity
- Full Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- PCIe Version
- PCIe 5.1
View on Amazon: Thermaltake Toughpower TF3 1650W Titanium PSU (paid link)
The Thermaltake Toughpower TF3 is a fully modular 1650W ATX power supply carrying an 80 Plus Titanium efficiency rating. Built to ATX 3.1 specifications, it includes two native PCIe 5.1 12V-2x6 cables rated for 600W each, alongside tight ±2% voltage regulation. If you build high-demand multi-GPU workstations or extreme gaming systems needing massive clean wattage with visual connection confirmation via dual-color matcha connectors, this unit matches your setup.
Pros
- 1650W capacity with 80 Plus Titanium efficiency rating
- Two native PCIe 5.1 12V-2x6 connectors delivering up to 600W each
- Built to ATX 3.1 specifications for high power excursion tolerances
- Dual-color matcha H++ connectors visually confirm proper seating
- Tight voltage regulation held to ±2%
Cons
- Wide 6.5-inch dimension requires ample chassis space
- 1650W capacity exceeds requirements for standard single-GPU builds
Good fit if
- You need 1650W of power with 80 Plus Titanium efficiency.
- You run high-draw graphics cards requiring two native PCIe 5.1 12V-2x6 cables.
- You want visual color indicators to ensure 12V-2x6 power connectors are fully plugged in.
Skip if
- You build a standard system that does not require 1650W of output.
- You have a compact case that cannot fit a 6.5-inch wide power unit.
Verdict: Thermaltake Toughpower TF3 1650W Titanium PSU delivers massive 1650W capacity and 80 Plus Titanium efficiency with dual PCIe 5.1 12V-2x6 cables for heavy hardware configurations. Its ATX 3.1 compliance and ±2% voltage regulation provide stable electrical delivery for power-dense setups.
MSI MAG 750W Gold Modular Power Supply
Best for: ATX 3.1 gaming systems needing 750W
- Wattage
- 750 W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 135 mm
View on Amazon: MSI MAG 750W Gold Modular Power Supply (paid link)
This MSI unit provides 750W of continuous power with an 80 PLUS Gold efficiency rating and full modular cabling. It complies with ATX 3.1 standards and includes a native 12V-2x6 connector delivering up to 600W for PCIe 5.1 hardware. Cooling uses a 135mm fluid-dynamic bearing fan inside a 150mm casing. You get a 10-year warranty for long-term reliability.
Pros
- Native 12V-2x6 connector delivers up to 600W for PCIe 5.1 GPUs
- 80 PLUS Gold certified for up to 90% efficiency
- ATX 3.1 standard compliance with fully modular cables
- 135 mm fluid-dynamic bearing fan
- 10-year manufacturer warranty
Cons
- 750W capacity limits headroom for dual-GPU or high-draw workstations
- 80 PLUS Gold efficiency ranks below Platinum and Titanium alternatives
Good fit if
- You need a dedicated 600W 12V-2x6 connection for modern graphics cards.
- You want a fully modular power supply that fits a 150 mm chassis clearance.
- You require ATX 3.1 compliance backed by a 10-year warranty.
Skip if
- You need more than 750W of total system output.
- You require 80 PLUS Platinum or Titanium level efficiency ratings.
Verdict: MSI MAG 750W ATX 3.1 Power Supply offers modern ATX 3.1 and PCIe 5.1 power delivery in a compact, fully modular design. Its 750W rating and 10-year warranty suit standard gaming builds requiring native 12V-2x6 support.
Specifications side by side
| Spec | ASUS ROG Thor 1000W Platinum III PSU | EVGA Supernova 1200W Platinum Fully Modular PSU | EVGA SuperNOVA 1600W 80 Plus Titanium PSU | EVGA Supernova G2 1300W Power Supply | ASUS ROG Thor Platinum III 1200W PSU | Corsair HX1500i 1500W Platinum ATX 3.1 PSU | Seasonic PRIME 1600W Platinum ATX 3.1 PSU | NZXT C1000 1000W ATX 3.1 Power Supply | MSI MAG 750W Semi-Modular PSU | Cooler Master MWE Gold 850W Fully Modular PSU | ASUS ROG Thor 1000W Platinum III PSU | FSP Mega Ti 1650W Titanium Power Supply | Thermaltake Toughpower TF3 1650W Titanium PSU | MSI MAG 750W Gold Modular Power Supply |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage | 1000W | 1200W | 1600W | 1300W | 1200W | 1500 Watts | 1600W | 1000W | 750W | 850W | 1000W | 1650W | 1650W | 750 W |
| Efficiency Rating | not specified | 80 PLUS Platinum | 80 PLUS Titanium | not specified | 80 PLUS Platinum | 80 Plus Platinum | 80 PLUS Platinum, Cybenetics Titanium | 80 PLUS Gold, Cybenetics Gold | 80 Plus Bronze | 80+ Gold | not specified | 80 PLUS Titanium, Cybenetics Titanium | 80 Plus Titanium | 80+ Gold |
| Modularity | not specified | Fully Modular | Fully Modular | not specified | Modular | Fully Modular | not specified | Fully Modular | Semi-Modular | Full Modular | not specified | Fully Modular | Full Modular | Fully Modular |
| ATX Version | not specified | not specified | not specified | not specified | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | not specified | not specified | not specified | ATX 3.1 | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | not specified | not specified | not specified | not specified | not specified | not specified | 12V-2x6 | 12V-2x6 | not specified | not specified | not specified | 12V-2x6, PCIe 6+2-pin | 12V-2x6 | 12V-2x6 |
| Fan Size | not specified | 140mm | 140mm | not specified | not specified | 140mm | 135 mm | 135mm | 120mm | 120mm | not specified | 135 mm | not specified | 135 mm |
| Warranty | not specified | 10 Year | 10 Year | not specified | 10-year | not specified | not specified | not specified | 5 Year | 5-Year | not specified | 10-year | not specified | 10 Year |
| Form Factor | not specified | not specified | not specified | not specified | ATX | ATX | ATX | ATX | ATX | not specified | not specified | not specified | ATX | ATX |
| PCIe Version | not specified | not specified | not specified | not specified | not specified | PCIe 5.1 | PCIe 5.1 | not specified | not specified | not specified | not specified | not specified | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | not specified | not specified | not specified | not specified | Gaming | not specified | not specified | Gaming | not specified | not specified | not specified | not specified | not specified | Gaming |
| Connector | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 12V-2x6 Connector | not specified | not specified | not specified | not specified | 12V-2x6 Connector | 12V-2x6 Connector |
| Power Factor Correction | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Active PFC | not specified | not specified | not specified | not specified | not specified |
| Size | 1000W Platinum III | 1200W | 1600 Watt | not specified | not specified | 1500 Watts | 1600W | 1000W (Pack of 4) | Pack of 6 | ATX (Pack of 5) | 1000W | 1650W | 1650W | 750 W - MAG (Pack of 5) |
| Dimensions | 7.48 × 5.91 × 3.39 inches | 8 × 4 × 6 inches | 3.4 × 14.5 × 6 inches | 6 × 8 × 4 inches | 7.48 × 5.91 × 3.39 inches | 7.87 × 5.91 × 3.39 inches | 8.3 × 6 × 3.4 inches | 6.3 × 5.91 × 3.39 inches | 11.4 × 8.11 × 4.96 inches | 5.5 × 5.9 × 3.38 inches | 7.5 × 5.9 × 3.3 inches | 7.09 × 5.91 × 3.39 inches | 5.9 × 6.5 × 3.4 inches | 11.5 × 9.25 × 5.08 inches |
| Weight | 5.22 pounds | 9 pounds | 14.5 pounds | 7 pounds | 5.22 pounds | 5.3 pounds | 13 pounds | 31.5 pounds | 32.2 pounds | 30.5 pounds | 5.2 pounds | 9 pounds | not specified | 28.7 pounds |
| Color | Black | Black | Black | not specified | Black & Grey | Black | not specified | Black | Black | Gold 850 V2 | BLACK | Black | Black | Information Not Available |
| Model | 90YE00V3-B0NA00 | 220-P2-1200-X1 | 220-T2-1600-X1 | 120-G2-1300-X | 90YE00V2-B0NA00 | CP-9020261-NA | Prime PX-1600 ATX 3.1 | PA-0G2BB-US | not specified | MPE-8501-AFAAG-US | ROG-THOR-1000P3-GAMING | MEGA-1650TI | PS-TPD-1650FNFATU-1 | MAG A750GLS PCIE5 |
Trade-Offs in Power Supplies Under $500
Power supplies Under $500 deliver high output reaching 1600W, yet you must navigate specific hardware constraints. Most units rely on the ATX form factor with extended lengths up to 8.27 inches, while only one model provides an SFX chassis. Efficiency rating options center primarily on 80 Plus Gold or 80 Plus Platinum, as 80 Plus Titanium remains rare across the list. Furthermore, multiple units lack ATX 3.0 or ATX 3.1 standards, leaving out dedicated PCIe 5.1 connectors.
- ATX version: Several high-capacity models lack ATX 3.0 or ATX 3.1 support.
- Form factor: Case clearance demands run high, with lengths reaching 8.27 inches.
- Efficiency rating: Most selections provide Gold or Platinum rather than Titanium.
How We Picked These Units
You see 14 power supplies for 2026 selected from listings matching Under $500. All details come directly from published specifications and feature sheets, and we do not physically handle the hardware. Only one size or variant per product family appears, which keeps your options focused and distinct.
The list displays products in stock first, then by Amazon sales rank to place better-selling products first. Live availability and listings update at least daily on the page. Units enter or leave this guide whenever catalog adjustments change their standing relative to Under $500.
Key Factors for Choosing Power Supplies
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Compare 80 Plus Ratings
Check the 80 Plus efficiency certification to match your system load and operating hours. Standard builds run well on 80 Plus Gold units, which reduce energy waste during typical gaming and productivity tasks. If you run workstation software continuously or operate high-draw components, look for 80 Plus Platinum or 80 Plus Titanium ratings. Higher ratings convert more wall power into usable system energy, generating less internal heat. The EVGA SuperNOVA 1600W 80 Plus Titanium PSU provides this top-tier efficiency tier for continuous heavy workloads.
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Match Capacity to Hardware
Calculate the total power demands of your processor and graphics card before selecting a wattage tier. Single-GPU desktop setups generally operate comfortably on an 850W supply like the EVGA 850 G6 Fully Modular PSU. If you configure multiple GPUs or run high-capacity cooling loops, step up to capacities between 1000W and 1600W. Choosing a supply that exceeds your hardware draw ensures the unit operates within its ideal power curve, which prevents over-current shutdowns during demanding processing spikes.
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Inspect Dedicated GPU Connectors
Examine the power cables included for graphics hardware if you plan to install modern video cards. Current high-demand GPUs benefit from power supplies equipped with native 12V-2x6 connectors rather than older multi-cable adapter assemblies. Units like the MSI MEG Ai1300P 1300W Platinum ATX 3.1 PSU feature this connector alongside PCIe 5.1 compliance. This dedicated interface supplies clean high-wattage power across a single lead, which simplifies interior routing and minimizes connector resistance under heavy graphics workloads.
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Select Modular Flat Cabling
Check the modularity specification to determine how cleanly cables route through your case. Fully modular interfaces allow you to attach only the power runs your hardware requires, eliminating unused bundles that obstruct airflow. If your chassis features narrow channels behind the motherboard tray, look for flat cable construction. The Thermaltake Toughpower Grand 1200W Gold Modular PSU supplies flat modular cables that bend easily in tight spaces, making cable management straightforward while keeping the primary chassis compartment unobstructed.
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Review Power Monitoring Displays
Review the unit for direct telemetry features if you want to track real-time power draw without running external diagnostic software. Certain supplies integrate physical readouts that display instantaneous wattage metrics through your case side panel. The ASUS ROG Thor 1000W Platinum III PSU includes a movable OLED display engineered for live wattage tracking. This hardware-based monitoring suits enthusiasts tuning system overclocks or diagnosing high graphics draw, providing immediate feedback directly from the power supply housing.
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Verify Manufacturer Warranty Coverage
Inspect the published warranty terms and internal component specifications to ensure multi-year reliability. Premium power units often carry a 10-year warranty, which signals manufacturer confidence in the internal topology and circuit protections. Look for models constructed with durable Japanese capacitors, which maintain electrical stability under sustained operating temperatures. The EVGA Supernova 1000 P2 Platinum Power Supply combines Japanese capacitors with a 10-year warranty, offering a durable electrical foundation for demanding systems that run for extended daily sessions.
Frequently asked questions
Which power supplies support dual native 12V-2x6 connectors?
Seasonic PRIME 1600W, FSP Mega Ti 1650W, and Thermaltake Toughpower TF3 1650W provide dual native 12V-2x6 power connections. These models deliver the ATX 3.1 standard and PCIe 5.1 compliance required for powering high-load dual-GPU setups or extreme workstation graphics cards. You get dedicated modern high-power cabling without relying on splitters or third-party adapters.
How does the OLED display work on ASUS ROG Thor power supplies?
The ASUS ROG Thor units feature an integrated, movable OLED screen that shows real-time wattage consumption directly on the chassis. This display lets you monitor power draw instantly without needing third-party desktop monitoring software. Both the 1000W Platinum III and 1200W models include this external readout, paired with GaN architecture or GPU stabilization features to support demanding graphics hardware in spacious cases.
What is the difference between ATX 3.1 and older power supply standards?
ATX 3.1 improves power delivery for modern graphics cards by incorporating updated transient spike protection and standardized 12V-2x6 power headers. Unlike older ATX specifications, models like the Corsair HX1500i, NZXT C1000, and Thermaltake Toughpower TF3 handle high momentary power excursions. This specification ensures your power supply reliably accommodates spikes in power draw from PCIe 5.1 hardware without triggering sudden system shutdowns.
Why choose an 80 Plus Titanium power supply over a Platinum model?
An 80 Plus Titanium rating ensures the highest level of energy efficiency across light, typical, and full electrical loads. Units such as the EVGA SuperNOVA 1600W, FSP Mega Ti 1650W, and Thermaltake Toughpower TF3 waste less power as heat during heavy operation. This efficiency profile helps maintain cooler internal temperatures and stable power delivery during long computing workloads or multi-GPU rendering sessions.
What chassis clearance do high-wattage power supplies require?
High-wattage power supplies often exceed standard ATX dimensions, requiring cases with more than 7 to 8.3 inches of mounting depth. For example, the Seasonic PRIME 1600W measures 8.3 inches long, while the EVGA Supernova 1200W measures 8 inches long. You should measure your enclosure's PSU chamber carefully to ensure adequate room for the chassis and modular cable routing.
What does active PFC provide in a PC power supply?
Active Power Factor Correction controls the input current waveform to maximize electrical efficiency and reduce harmonic distortion on the power grid. In models like the MSI MAG 750W Semi-Modular, active PFC stabilizes power consumption and aligns the phase angle between voltage and current. This mechanism helps your electrical components operate consistently across fluctuating input voltages without straining your household circuit.
What are the advantages of software-controlled power supply rails?
Software-driven rails allow you to monitor power output and switch between single-rail and multi-rail overcurrent protection configurations. On units like the Corsair HX1500i Platinum, digital rail management lets you customize trip thresholds based on your system hardware demands. This flexibility protects sensitive components from unexpected electrical faults while still delivering continuous, high-wattage delivery to power-hungry graphics cards and processors.