ESGAMING PC Power Supplies: 8 Picks Ranked by Specs
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Choosing the right ESGAMING PC power supply requires matching dimensions, wattage, and cabling to your hardware. The ESGAMING lineup spans standard ATX and compact Flex ATX form factors, offering outputs from 300W to 750W with non-modular and modular cabling. The ESGAMING 600W Non-Modular ATX Power Supply takes the top spot because it provides balanced mid-range power and dual PCIe connectors for standard desktop builds.
This guide compares 8 models based strictly on specifications published on their listings to help you find the right unit for your chassis.
Quick picks
Our 8 picks
ESGAMING 600W Non-Modular ATX Power Supply
Best for: standard ATX desktops needing dual PCIe power
- Wattage
- 600W
- Modularity
- Non-Modular
- PCIe Connector Type
- 6+2 pin
- Fan Size
- 120mm
- Form Factor
- ATX
- Dimensions
- 5.51 × 3.15 × 5.91 inches
This 600W standard ATX unit provides a dedicated 45A rail on the +12V line and uses an auto-controlled 120mm cooling fan. You get flat black non-modular cables featuring two 6+2-pin PCIe connectors and four SATA connections. It includes standard hardware protections covering over-voltage, short circuits, and temperature limits. It suits your standard desktop build if you need mid-range wattage with traditional manual voltage switching between 110V and 230V.
Pros
- Delivers up to 45A on the single +12V rail
- Thermally controlled 120mm cooling fan
- Six hardware protections covering voltage, current, power, and thermal limits
- Flat cabling includes two split 6+2-pin PCIe connectors
Cons
- Non-modular design prevents removing unused power cables
- Requires manual switch selection between 110V and 230V input
- No official 80 Plus efficiency certification listed
Good fit if
- You need 600W output with a 45A +12V rail in a standard ATX enclosure.
- You use a dedicated graphics card requiring up to two 8-pin or 6-pin power connections.
- You want flat black cables for straightforward routing inside standard desktop cases.
Skip if
- You require a modular unit to detach unused wiring.
- You need automatic full-range voltage input instead of a manual red selector switch.
- You are building a compact system that requires Flex ATX or TFX dimensions.
Verdict: ESGAMING 600W Non-Modular ATX Power Supply provides standard mid-range desktop power with multi-point safety protections and dual PCIe connectors. Its fixed wiring and manual voltage selection suit straightforward ATX builds without modular cable requirements.
ESGAMING 500W Flex ATX Modular PSU
Best for: compact Mini ITX builds with dedicated graphics
- Wattage
- 500W
- Efficiency Rating
- 80 PLUS Bronze
- Modularity
- Fully Modular
- PCIe Connector Type
- 6+2 PCIE
- Form Factor
- Mini ITX
- Dimensions
- 6.3 × 2.87 × 1.38 inches
This 500-watt 1U Flex ATX power supply fits compact Mini ITX, NAS, and rackmount cases. It features 80 Plus Bronze efficiency rating, an active PFC 90-264V full-range input, and a fully modular design that lets you detach unneeded cables inside tight enclosures. With two 6+2 pin PCIe connectors, it delivers dedicated power for graphics cards in space-constrained builds.
Pros
- Fully modular cable design simplifies management in small chassis
- Provides two 6+2 pin PCIe connectors for graphics cards
- 80 Plus Bronze certified for up to 85% energy efficiency
- Compact 1U Flex ATX dimensions of 6.30 by 2.87 by 1.38 inches
Cons
- Provides only two SATA power connectors
- Limited to 80 Plus Bronze efficiency rather than Gold
Good fit if
- You need a 500W modular power supply for a compact Mini ITX, NAS, or 1U build.
- You run a discrete graphics card requiring up to two 6+2 pin PCIe connectors.
- You want detachable cables to improve airflow inside cramped cases.
Skip if
- You need to power more than two SATA storage drives.
- You require 80 Plus Gold or higher energy efficiency ratings.
Verdict: ESGAMING 500W Modular Flex ATX Power Supply provides 500 watts of Bronze-certified power and full modularity for space-limited Mini ITX and 1U systems. Its dual PCIe connectors give you flexible expansion options for dedicated graphics cards in compact enclosures.
ESGAMING 300W TFX Power Supply
Best for: Compact NAS and mini-ITX desktop builds
- Wattage
- 300W
- Fan Size
- 80mm
- Form Factor
- Flex ATX
- Dimensions
- 6.69 × 3.35 × 2.56 inches
You get a 300W power supply designed for compact TFX systems, NAS builds, and mini-ITX enclosures. It measures 170 by 85 by 65 mm and uses an 80mm fan for cooling. Key hardware features include a manual 115V or 230V voltage selector switch, split 20+4 pin and 4+4 pin connectors, and full internal protection circuitry covering over-voltage, short-circuit, and over-temperature scenarios.
Pros
- Equipped with an 80mm forced-air cooling fan
- Full protection suite includes OVP, UVP, OCP, OPP, SCP, and OTP
- Split 20+4 pin motherboard and 4+4 pin CPU connectors
- Manual switch supports 110V to 230V input ranges
Cons
- Output capacity limited to 300W
- Requires manual voltage switching instead of auto-switching
Good fit if
- You are assembling a low-draw NAS or mini-ITX system.
- You need a standard TFX chassis fit measuring 170 by 85 by 65 mm.
- You need split 20+4 pin and 4+4 pin connectors for older or compact motherboards.
Skip if
- You need more than 300W of total system power.
- You want automatic voltage switching across 110V and 230V grids.
Verdict: ESGAMING 300W TFX Power Supply delivers essential power and comprehensive circuit protections for low-wattage slim desktops and small NAS enclosures.
ESGAMING 300W Flex ATX Power Supply
Best for: compact NAS and mini-ITX systems
- Wattage
- 300W
- Fan Size
- 80mm
- Form Factor
- Flex ATX
- Dimensions
- 6.69 × 3.35 × 2.56 inches
This ESGAMING 300W Flex ATX Power Supply delivers 300 watts of power in a compact 170 by 85 by 65 millimeter chassis. It features an 80mm cooling fan, a switchable 110V to 230V input toggle, and full circuit protections including OVP, UVP, OCP, OPP, SCP, and OTP. The split 20+4 pin motherboard and 4+4 pin CPU connectors support older and modern boards. It suits you if you build a compact NAS, mini-ITX system, or low-profile desktop.
Pros
- Includes OVP, UVP, OCP, OPP, SCP, and OTP safety protections
- Compact 170 x 85 x 65 mm dimensions fit small form factor cases
- Equipped with an 80mm cooling fan for ventilation
- Split 20+4 pin motherboard and 4+4 pin CPU connectors
Cons
- Requires manual voltage switching between 110V and 230V
- Limited 300W total capacity restricts hardware expansion
- No PCIe power connectors listed for dedicated graphics cards
Good fit if
- You need a 300W unit for a small form factor NAS or mini-ITX system.
- You require split 20+4 pin and 4+4 pin connectors for board compatibility.
Skip if
- You need automatic voltage switching instead of a manual selector.
- You run a high-draw gaming build needing more than 300 watts.
Verdict: ESGAMING 300W Flex ATX Power Supply provides 300W output and extensive circuit protections for compact mini-ITX cases and small home servers. Its manual voltage toggle and fixed compact layout make it a focused choice for low-draw builds.
ESGAMING 750W 80 Plus Gold Non-Modular PSU
Best for: high-draw gaming rigs with spacious cases
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Non-Modular
- PCIe Connector Type
- PCI-E (6+2)/8Pin
- Recommended Use
- Gaming
- Power Factor Correction
- Active PFC
This ESGAMING unit delivers 750 watts of output with 80 Plus Gold certified efficiency, reaching up to 91 percent at typical loads. It features Active PFC for stable voltage regulation and comes with fixed, non-modular cabling. With four 8-pin PCIe connectors and six SATA leads, it supplies ample connectivity for multi-component setups. It suits you if you need reliable high wattage for a gaming PC and have space to tuck away fixed cables.
Pros
- 80 Plus Gold certified with up to 91% efficiency at typical load
- Four 6+2-pin / 8-pin PCI-E connectors for multi-connector graphics cards
- Active PFC for voltage stabilization and electrical noise reduction
- Includes six SATA and three IDE/PATA power connectors
Cons
- Non-modular cables cannot be detached if unused
- Includes only one 4+4-pin CPU power connector
Good fit if
- You need 750W of power with 80 Plus Gold efficiency for a gaming setup
- You require up to four 8-pin PCI-E connections for your graphics hardware
- You have sufficient case clearance to store unused fixed cables
Skip if
- You want modular or semi-modular cables to simplify interior case routing
- You need a dual 8-pin CPU power configuration for high-draw motherboards
Verdict: ESGAMING 750W 80 Plus Gold Non-Modular PSU provides solid 750-watt output and high efficiency for demanding gaming builds. Its fixed cable harness requires extra space for tucking away unused leads.
ESGAMING 750W 80 Plus Gold Non-Modular PSU
Best for: 750W builds needing 80 Plus Gold efficiency
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Non-Modular
- Fan Size
- 120mm
- Recommended Use
- Gaming
- Power Factor Correction
- Active PFC
This ESGAMING power supply provides 750W of stable output with an 80 Plus Gold certification for up to 90% efficiency. It incorporates active PFC, a quiet 120mm temperature-controlled cooling fan, and hardware protections including OVP, OCP, SCP, and OPP. All cables are non-modular and permanently attached to the chassis. It suits you if you run high-demand components and prioritize certified efficiency over modular cable customization.
Pros
- 80 Plus Gold certified for up to 90% efficiency
- 750W output with Active PFC support
- Temperature-controlled 120mm cooling fan
- Hardware protections for OVP, OCP, SCP, and OPP
Cons
- Non-modular design prevents removing unused cables
- Over-temperature protection (OTP) is not listed in the specifications
Good fit if
- You need 750W of power with 80 Plus Gold efficiency for your system.
- You have adequate chassis space to tuck away fixed cables.
Skip if
- You require modular cables to minimize internal clutter.
- You need a smaller Flex ATX or 1U form-factor unit.
Verdict: ESGAMING 750W 80 Plus Gold Non-Modular PSU delivers high electrical efficiency and essential safeguards for gaming hardware. Its non-modular cabling requires planned routing inside your PC case.
ESGAMING 400W Modular Flex ATX PSU
Best for: compact 1U servers and small NAS chassis
- Wattage
- 400W
- Efficiency Rating
- 80 Plus Bronze
- Modularity
- Fully Modular
- PCIe Connector Type
- 6+2 PCIE
- Form Factor
- Mini ITX
- Dimensions
- 6.3 × 2.87 × 1.38 inches
This ESGAMING unit is a 400W Flex ATX power supply designed for compact builds. It features 80 PLUS Bronze efficiency, delivering up to 85% efficiency across a 90 to 264V input range. Its fully modular cable setup lets you connect only the leads you require inside tight cases. Equipped with dual 6+2-pin PCIe connectors and internal safeguards, it suits your small-form-factor builds, 1U rackmount chassis, or custom network storage setups.
Pros
- Fully modular cable design for space-constrained chassis
- 80 PLUS Bronze certified with up to 85% efficiency
- Equipped with dual 6+2-pin PCIe power connectors
- Built-in OVP, OCP, OPP, and SCP electrical safeguards
Cons
- Provides only two SATA power connectors
- Modest 400W maximum capacity limits high-draw hardware
Good fit if
- You need a modular Flex ATX supply for a 1U chassis or compact NAS.
- You run a small build requiring up to two 8-pin PCIe power leads.
Skip if
- You plan to connect more than two native SATA drives.
- You need higher wattage for demanding desktop hardware.
Verdict: ESGAMING 400W Flex ATX Modular Power Supply delivers efficient, modular power in a slim 1U footprint. It provides solid capability for space-constrained servers, network storage, and compact home theater systems.
ESGAMING 300W Fully Modular Flex ATX Power Supply
Best for: compact 1U and Mini-ITX modular builds
- Wattage
- 300W
- Modularity
- Fully Modular
- PCIe Connector Type
- 6+2 PCIE
- Fan Size
- 40mm
- Form Factor
- Flex ATX
- Dimensions
- 6.5 × 3.19 × 1.61 inches
View on Amazon: ESGAMING 300W Fully Modular Flex ATX Power Supply
This ESGAMING unit delivers 300 watts of power in a compact Flex ATX and 1U form factor. Its fully modular cabling lets you attach only the cables you need, saving space in tight enclosures. It features active PFC with 90 to 264V input, a thermally controlled 40mm ball-bearing fan, and one 6+2-pin PCIe connector. It suits your compact server build or mini-ITX setup requiring tidy cable management.
Pros
- Fully modular cable design allows detachable wiring
- Full-range 90–264V active PFC support
- 40mm double ball-bearing fan with thermal speed control
- Includes one 6+2 pin PCIe connector
Cons
- Maximum power output is limited to 300 watts
- Provides only two SATA power connectors
Good fit if
- You build a 1U server or Mini-ITX system needing modular cables.
- You want full-range 90 to 264V active PFC input support.
- You need a dedicated 6+2 pin PCIe connector within a 300W budget.
Skip if
- You need more than 300 watts of power for high-draw hardware.
- You require power for more than two SATA storage drives.
Verdict: ESGAMING 300W Fully Modular Flex ATX Power Supply delivers detachable cabling and full-range voltage input for compact 1U and Mini-ITX cases. Its 300W capacity and modest connector count make it best suited for low-draw builds.
Specifications side by side
| Spec | ESGAMING 600W Non-Modular ATX Power Supply | ESGAMING 500W Flex ATX Modular PSU | ESGAMING 300W TFX Power Supply | ESGAMING 300W Flex ATX Power Supply | ESGAMING 750W 80 Plus Gold Non-Modular PSU | ESGAMING 750W 80 Plus Gold Non-Modular PSU | ESGAMING 400W Modular Flex ATX PSU | ESGAMING 300W Fully Modular Flex ATX Power Supply |
|---|---|---|---|---|---|---|---|---|
| Wattage | 600W | 500W | 300W | 300W | 750W | 750W | 400W | 300W |
| Efficiency Rating | not specified | 80 PLUS Bronze | not specified | not specified | 80 PLUS Gold | 80 PLUS Gold | 80 Plus Bronze | not specified |
| Modularity | Non-Modular | Fully Modular | not specified | not specified | Non-Modular | Non-Modular | Fully Modular | Fully Modular |
| PCIe Connector Type | 6+2 pin | 6+2 PCIE | not specified | not specified | PCI-E (6+2)/8Pin | not specified | 6+2 PCIE | 6+2 PCIE |
| Fan Size | 120mm | not specified | 80mm | 80mm | not specified | 120mm | not specified | 40mm |
| Form Factor | ATX | Mini ITX | Flex ATX | Flex ATX | not specified | not specified | Mini ITX | Flex ATX |
| Recommended Use | not specified | not specified | not specified | not specified | Gaming | Gaming | not specified | not specified |
| Power Factor Correction | not specified | not specified | not specified | not specified | Active PFC | Active PFC | not specified | not specified |
| Size | 600W | 500W | not specified | not specified | Non-Modular | 750W | not specified | not specified |
| Dimensions | 5.51 × 3.15 × 5.91 inches | 6.3 × 2.87 × 1.38 inches | 6.69 × 3.35 × 2.56 inches | 6.69 × 3.35 × 2.56 inches | 5.51 × 5.91 × 3.15 inches | 5.51 × 5.91 × 3.15 inches | 6.3 × 2.87 × 1.38 inches | 6.5 × 3.19 × 1.61 inches |
| Weight | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 2 pounds |
| Color | Black | not specified | Black | not specified | not specified | Black | not specified | not specified |
| Model | 600W Non-Modular | 1U500W | TFX300W | TFX-300W | 750W | 750W | 1U400W | 1U 300W |
The ESGAMING Power Supply Lineup
The ESGAMING catalog divides primarily by form factor and cabling modularity. For standard desktop cases, you have ATX units delivering 600W to 750W with fixed wiring. The ESGAMING 750W 80 Plus Gold Non-Modular PSU includes Active PFC and high electrical efficiency for demanding setups. For general mid-range systems, the ESGAMING 600W Non-Modular ATX Power Supply provides dual PCIe connectors alongside manual voltage selection.
For space-constrained 1U servers, NAS enclosures, and Mini-ITX cases, you can choose compact Flex ATX options delivering 300W to 500W. The ESGAMING 500W Flex ATX Modular PSU features 80 Plus Bronze efficiency and detachable cables for small systems running dedicated graphics. If you need low-draw power, the ESGAMING 300W Fully Modular Flex ATX Power Supply minimizes clutter using fully modular wiring.
Where ESGAMING Fits Your Build
ESGAMING fits builds spanning 300W to 750W across two main shapes: elongated Flex ATX for 1U or Mini-ITX cases and standard ATX boxes for mid-towers. If you need modular cabling, you will only find it on the low-wattage Flex ATX units between 300W and 500W. The higher-capacity 600W and 750W ATX models rely entirely on fixed wiring harnesses. The lineup contains no RGB or LED lighting options. Gaps also include outputs above 750W, modular ATX designs, dedicated SFX dimensions, and efficiency certifications beyond 80 Plus Gold. You should choose this brand for compact servers or basic desktop builds.
How to Choose an ESGAMING Power Supply
-
Match Form Factor and Dimensions
Measure your case chassis carefully before selecting a power supply. Standard desktop towers require an ATX footprint, while compact 1U server racks and small Mini ITX cases need slender Flex ATX dimensions. For instance, the ESGAMING 500W Flex ATX Modular PSU measures 1.38 inches high and 2.87 inches wide to slide into tight enclosures. Installing an incorrect profile prevents mounting bracket alignment and blocks case airflow. Verify your case specifications against the published length, width, and height before purchase.
-
Check 80 Plus Efficiency Rating
Check the 80 Plus certification on the specification sheet to gauge electrical efficiency under load. ESGAMING models range from uncertified base units to 80 Plus Bronze and 80 Plus Gold ratings. A higher rating indicates less energy wasted as heat during AC to DC power conversion. If you run a high-draw gaming PC for long sessions, choosing the ESGAMING 750W 80 Plus Gold Non-Modular PSU delivers elevated efficiency. For low-draw office setups or small home servers, an entry-level supply provides adequate power handling.
-
Assess Modular Cable Needs
Decide whether your enclosure requires modular cables or if fixed harnesses will work. Non-modular power supplies feature permanently attached bundles that take up internal volume and require room for cable tucking. In tight Mini ITX or 1U cases, loose wires quickly choke cooling airflow. The ESGAMING 300W Fully Modular Flex ATX Power Supply lets you attach only the essential power leads you need for your components. If you build inside a spacious mid-tower case, a non-modular unit remains easy to manage.
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Verify Dedicated PCIe Connectors
Confirm that the power supply includes the dedicated PCIe connectors required by your graphics card. Basic office PCs and light home servers run without auxiliary GPU connections, but dedicated video cards need direct power leads from the unit. The ESGAMING 600W Non-Modular ATX Power Supply supplies dual PCIe connectors to run compatible graphics cards without adapters. Review your discrete GPU requirements for six-pin or eight-pin power ports, and make sure the power supply provides matching PCIe cables out of the box.
-
Verify Voltage Input Type
Review how the power supply handles regional alternating-current input. Certain units feature a manual voltage toggle switch on the back panel, whereas others offer full-range automatic voltage input. With a manual switch, such as on the ESGAMING 300W Flex ATX Power Supply, you must set the physical switch to match your local grid before powering the system on. Running an incorrect switch position can damage internal circuitry. If you prefer automatic regional adjustment without manual configuration, check for full-range input on the spec sheet.
Frequently asked questions
Can an ESGAMING Flex ATX power supply run a dedicated graphics card?
Yes, select models can support dedicated graphics cards. The ESGAMING 500W Modular Flex ATX unit includes dual PCIe connectors specifically for video cards. You must verify that your GPU power demands stay within the 500W limit and that your compact enclosure has clearance for both the graphics card and power cabling.
What efficiency ratings do ESGAMING power supplies offer?
ESGAMING offers power supplies with 80 Plus Bronze and 80 Plus Gold certifications, depending on the model. The 400W and 500W modular Flex ATX units carry an 80 Plus Bronze rating. If you need higher electrical efficiency for demanding setups, the brand provides 750W ATX models engineered with 80 Plus Gold certification and Active PFC.
Do ESGAMING power supplies support international voltage inputs?
Voltage handling varies by specific unit. The ESGAMING 300W Fully Modular Flex ATX supply supports full-range voltage input automatically. Conversely, models like the 600W ATX and 300W TFX-300W feature a manual voltage selection switch. You must check and flip the switch to match your local grid before connecting power to prevent hardware damage.
Which ESGAMING power supplies include modular cables?
Modular cables appear strictly on ESGAMING small-form-factor units. The ESGAMING 300W Flex ATX is fully modular, allowing you to attach only needed lines. The 400W and 500W Flex ATX models also feature modular layouts. In contrast, higher-capacity ATX models in 600W and 750W employ fixed, non-modular harnesses that require manual cable management.
Can you install an ESGAMING Flex ATX power supply in a standard ATX case?
You cannot install a Flex ATX supply into a standard ATX cutout without an aftermarket mounting bracket. ESGAMING Flex ATX units measure significantly narrower and thinner than standard desktop power slots. While standard ATX models fit regular desktop towers natively, compact 1U and Mini-ITX units require matching chassis screw patterns or conversion plates.
What built-in circuit protections do ESGAMING power supplies feature?
ESGAMING power supplies incorporate multi-point circuit safeguards across their models to protect connected hardware. Units such as the 300W Flex ATX, 600W ATX, and 750W Gold models deliver comprehensive circuit protections to prevent electrical faults. The 750W Gold options also include Active PFC to stabilize power delivery under heavy gaming loads.
Is an ESGAMING 300W power supply sufficient for a home NAS build?
Yes, a 300W ESGAMING unit suits most compact home NAS and mini-ITX storage configurations. Models like the 300W TFX and 300W Fully Modular Flex ATX deliver adequate wattage for low-power processors and multiple storage drives. You should calculate the total wattage of your hard drives during spin-up to confirm it remains safely under 300W.