Corsair RM750e 750W ATX 3.1 Alternatives: 6 Similar Picks Compared
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
If you are looking for corsair rm750e 750w atx 3 1 alternatives, you likely need a power supply that meets specific build requirements. The Corsair RM750e delivers ATX 3.1 compliance and PCIe 5.1 support in a compact 5.91-inch frame. It features fully modular cabling and a 120mm fan designed for quiet operation. These specs make it a reliable choice for standard mid-tower cases.
You might want a different option if you need higher wattage, a specific color, or a more efficient rating. Some builders prefer side-mounted connectors for cleaner cable management, while others require 80 Plus Gold certification for better energy efficiency. Others may need extra headroom for high-end GPUs or a longer warranty period. The alternatives on this list were chosen because their specifications overlap with the original. We compared 6 similar picks to help you find the right fit for your system.
Our top pick: Corsair RM750e 750W ATX 3.1 Power Supply.
Comparing Corsair RM750e Alternatives
Corsair RM750x Shift White 750W ATX Power Supply
The Corsair RM750x Shift offers side-mounted connectors for cleaner cable management, unlike the RM750e’s standard layout. It includes an 80 Plus Gold efficiency rating, whereas the RM750e does not list an efficiency tier. The Shift is slightly larger at 6.3 inches long and weighs more at 3.75 pounds. It also features a larger fan for quieter operation. Choose this if you prioritize aesthetics and efficiency in a mid-tower case. You sacrifice some compactness for better cable routing and higher efficiency standards.
Thermaltake Toughpower GT 750W Snow
The Thermaltake Toughpower GT 750W Snow is a white unit with 80 Plus Gold efficiency, providing better power conversion than the unlisted RM750e tier. It includes a 5-year warranty, offering longer protection than the standard RM750e coverage. The unit is significantly smaller in dimensions, measuring 2.32 inches in length. It supports PCIe 5.1 and ATX 3.1 standards. Pick this for white-themed builds or tight spaces where its compact size matters. You gain efficiency and warranty length but pay for a premium form factor.
Corsair RM750e 750W ATX 3.1 Power Supply
This listing is nearly identical to the original RM750e, featuring the same 750W output, ATX 3.1 compliance, and PCIe 5.1 support. It retains the fully modular design and 12V-2x6 connector. The primary difference is the badge designation as an alternative pick rather than the top choice. Dimensions and weight remain the same at 5.91 inches and 3.3 pounds. This option is suitable if you find this specific variant at a different price point. It offers the same core functionality without any significant spec changes.
Corsair RM850x Shift 850W White ATX Power Supply
The Corsair RM850x Shift provides 850W of power, exceeding the RM750e’s 750W capacity for higher-end GPUs. It features 80 Plus Gold efficiency, surpassing the RM750e’s unlisted efficiency rating. The unit is white and includes side-mounted connectors for improved cable management. It weighs 3.75 pounds and measures 6.3 inches in length. Choose this if your system requires extra headroom beyond 750W. You gain power and efficiency but accept a larger footprint and higher cost for the increased wattage and premium features.
Corsair RM850x 850W Fully Modular ATX 3.1 PSU
The Corsair RM850x delivers 850W, offering more power than the 750W RM750e. It is fully modular and supports ATX 3.1 with PCIe 5.1. The unit is black and weighs 3.9 pounds. It measures 5.91 inches in width and 3.39 inches in height. This model includes a 12V-2x6 connector for modern GPUs. Select this if you need reliable support for high-performance gaming rigs. You trade the RM750e’s lower wattage for greater power capacity and enthusiast-grade connectivity in a similar form factor.
MSI MPG 850W Gold ATX 3.1 Power Supply
The MSI MPG 850W Gold provides 850W, significantly more than the RM750e’s 750W. It features 80 Plus Gold efficiency, offering better power conversion. The unit includes a 10-year warranty, which is longer than the standard RM750e coverage. It is fully modular and supports PCIe 5.1. The unit is heavier at 7.15 pounds and measures 5.91 inches in length. Choose this for high-end gaming builds needing extra headroom. You gain substantial power, efficiency, and warranty length but accept a heavier and bulkier unit.
Quick picks
Our 7 picks
Corsair RM750e 750W ATX 3.1 Power Supply
Best for: ATX 3.1 builds needing 750W
- Wattage
- 750W
- Efficiency Rating
- Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
View on Amazon: Corsair RM750e 750W ATX 3.1 Power Supply Affiliate link
The Corsair RM750e is a 750W fully modular power supply built for modern systems. It carries ATX 3.1 certification and supports PCIe 5.1, handling GPU power spikes reliably. A 120mm rifle bearing fan keeps noise low during operation. The unit uses 105°C-rated capacitors for steady performance. It fits standard ATX cases and suits builders needing efficient, quiet power for mid-range to high-end GPUs.
Pros
- ATX 3.1 certification for modern platform support
- PCIe 5.1 ready with transient power handling
- Fully modular cabling reduces clutter
- 120mm rifle bearing fan for low noise
- 105°C-rated capacitors ensure steady power delivery
Cons
- 750W output limits high-end GPU builds
- 120mm fan size is smaller than premium 135mm or 140mm alternatives
- 3.3-pound weight is heavier than some compact units
Good fit if
- You need ATX 3.1 compliance for new GPUs
- You want fully modular cables for clean builds
- You prioritize low noise in a standard ATX case
Skip if
- You require more than 750W of power
- You prefer a larger fan for even quieter operation
- You need a white color option for this specific model
Verdict: Corsair RM750e 750W ATX 3.1 delivers reliable ATX 3.1 performance for builders who need PCIe 5.1 support without excessive wattage. It fits users who value low noise and clean cabling in standard ATX cases.
Corsair RM750x Shift White 750W ATX Power Supply
Best for: Clean cable management in mid-tower builds
- Wattage
- 750W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- Fan Size
- 140mm
- PCIe Version
- PCIe 5.1
View on Amazon: Corsair RM750x Shift White 750W ATX Power Supply Affiliate link
This Corsair unit offers 750W of power with 80 Plus Gold efficiency. Its side-mounted modular connectors simplify cable management in tight cases. The 140mm fan runs quietly, and it supports PCIe 5.1 standards. It suits builders who value clean interiors and reliable power delivery for modern components.
Pros
- Side-mounted modular connectors for easier cable access
- 140mm fan for low-noise operation
- 80 Plus Gold efficiency rating
- ATX 3.1 and PCIe 5.1 support
Cons
- Larger 140mm fan size may not fit small cases
- Heavier at 3.75 pounds compared to standard units
- Side-mount design requires compatible case layouts
Good fit if
- You want cleaner cable management in your build
- You need support for PCIe 5.1 GPUs
- You prefer quieter operation with a larger fan
Skip if
- You are building in a small form factor case
- You need a standard front-mounted modular design
- You require a lighter power supply for easy transport
Verdict: Corsair RM750x Shift 750W ATX 3.1 fits builders who prioritize cable management and quiet operation. It is ideal for mid-tower cases that accommodate its side-mounted connectors and larger fan.
Thermaltake Toughpower GT 750W Snow
Best for: White ATX 3.1 builds needing PCIe 5.1 support
- Wattage
- 750W
- Efficiency Rating
- 80 PLUS Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6 (12+4 pin)
- Fan Size
- 120mm
View on Amazon: Thermaltake Toughpower GT 750W Snow Affiliate link
This is a white, fully modular 750W power supply built for ATX 3.1 systems. It carries an 80 PLUS Gold efficiency rating and includes a native 12V-2x6 connector for PCIe 5.1 GPUs. The unit uses a 120mm fan with a Smart Zero Fan mode for silent operation at low loads. It fits well if you want a clean white build with modern GPU support and reliable safety protections.
Pros
- ATX 3.1 compliant with 80 PLUS Gold efficiency
- Native 12V-2x6 (12+4 pin) PCIe 5.1 connector
- Fully modular design with low-profile white cables
- Smart Zero Fan ensures silent operation at low loads
- Comprehensive safety protections including OCP, OVP, and OTP
Cons
- 120mm fan size is smaller than the 135mm or 140mm fans in many competitors
- White color limits options if you prefer a black build
- No mention of app control or software monitoring
Good fit if
- You are building a white-themed PC and want a matching power supply
- You need native PCIe 5.1 support for next-gen graphics cards
- You prioritize silent operation at idle with Smart Zero Fan technology
Skip if
- You require a larger 135mm or 140mm fan for potentially quieter operation
- You prefer a black power supply to match a dark case interior
- You need software control or monitoring features for fan curves
Verdict: Thermaltake Toughpower GT 750W Snow is a solid choice for white-themed builds needing ATX 3.1 compliance and native PCIe 5.1 support. It suits users who value silent low-load operation and clean cable management.
Corsair RM750e 750W ATX 3.1 Power Supply
Best for: ATX 3.1 builds needing 12V-2x6 support
- Wattage
- 750W
- Efficiency Rating
- Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
View on Amazon: Corsair RM750e 750W ATX 3.1 Power Supply Affiliate link
The Corsair RM750e is a fully modular power supply rated for 750 watts. It meets the ATX 3.1 standard and supports PCIe 5.1 with a 12V-2x6 connector. Cybenetics Gold efficiency ensures reliable performance. A 120mm rifle bearing fan keeps noise low. It includes modern standby compatibility for faster wake times. This unit suits builders needing stable power for current GPUs.
Pros
- ATX 3.1 certified for modern platform stability
- Fully modular cabling reduces clutter
- 12V-2x6 connector for PCIe 5.1 GPUs
- Cybenetics Gold efficiency rating
Cons
- 120mm fan size is smaller than the 135mm fans in many competitors
- Cybenetics Gold rating is slightly below the 80 Plus Gold standard listed for rivals
- 5.91-inch length may not fit in very small form factor cases
Good fit if
- You need a 12V-2x6 connector for a new GPU
- You want a fully modular unit for clean cable management
- You prioritize low noise at full load
Skip if
- You require a 135mm fan for quieter operation
- You need 80 Plus Platinum or Titanium efficiency
- You are building in a case with strict length limits
Verdict: Corsair RM750e 750W ATX 3.1 is a solid choice for users who need ATX 3.1 compliance and a 12V-2x6 connector without paying for higher efficiency tiers. It fits well in mid-tower cases where its 5.91-inch length is acceptable.
Corsair RM850x Shift 850W White ATX Power Supply
Best for: High-end GPUs needing 850W
- Wattage
- 850W
- Efficiency Rating
- 80 Plus Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- PCIe 5.1
- Dimensions
- 6.3 × 5.91 × 3.39 inches
View on Amazon: Corsair RM850x Shift 850W White ATX Power Supply Affiliate link
The Corsair RM850x Shift is a fully modular ATX 3.1 power supply rated at 850W with 80 Plus Gold efficiency. It supports PCIe 5.1 for modern graphics cards and includes a zero-RPM fan mode for silent operation. Its compact dimensions measure 5.91 by 3.39 by 6.3 inches. This unit suits builders needing high wattage in a smaller form factor.
Pros
- 850W output capacity
- ATX 3.1 standard compliance
- PCIe 5.1 connector support
- 80 Plus Gold efficiency
- Zero RPM fan mode
Cons
- Heavier at 3.75 pounds
- White color variant only
- Higher wattage than 750W need
Good fit if
- You need 850W for high-end GPUs
- You want PCIe 5.1 ready cables
- You prefer compact ATX builds
Skip if
- You strictly need 750W capacity
- You require a black color scheme
- You want a lighter unit
Verdict: Corsair RM850x Shift 850W ATX 3.1 offers robust power and modern connectivity for demanding builds. It fits users who need extra headroom beyond 750W without sacrificing compactness.
Corsair RM850x 850W Fully Modular ATX 3.1 PSU
Best for: High-end gaming PCs needing 850W
- Wattage
- 850W
- Efficiency Rating
- Cybenetics Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- PCIe Version
- PCIe 5.1
View on Amazon: Corsair RM850x 850W Fully Modular ATX 3.1 PSU Affiliate link
The Corsair RM850x is a fully modular 850W power supply built for modern systems. It meets ATX 3.1 standards and supports PCIe 5.1 via a 12V-2x6 connector. The unit holds Cybenetics Gold efficiency certification. It measures 2.3 by 5.91 by 3.39 inches and weighs 3.9 pounds. This model suits users who need extra headroom for high-end graphics cards while maintaining low noise levels.
Pros
- 850W output capacity
- Fully modular cable design
- ATX 3.1 compliance
- PCIe 5.1 support with 12V-2x6 connector
- Cybenetics Gold efficiency rating
Cons
- Higher wattage than the 750W RM750e base model
- Larger physical dimensions than compact alternatives
- Heavier build at 3.9 pounds
Good fit if
- You plan to use a high-end GPU requiring PCIe 5.1 power
- You need more than 750W for future upgrades
- You prefer fully modular cables for clean builds
Skip if
- You are strictly limited to a 750W power budget
- You need a smaller form factor than standard ATX
- You require 80 Plus Platinum or Titanium efficiency
Verdict: Corsair RM850x 850W ATX 3.1 provides robust power and modern connectivity for enthusiasts building high-performance gaming rigs. It is ideal for users who prioritize cable management and need reliable support for next-generation graphics cards.
MSI MPG 850W Gold ATX 3.1 Power Supply
Best for: High-end gaming builds needing extra power
- Wattage
- 850W
- Efficiency Rating
- 80+ Gold
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1
- PCIe Connector Type
- 12V-2x6
- Warranty
- 10 Year
View on Amazon: MSI MPG 850W Gold ATX 3.1 Power Supply Affiliate link
This is an 850W fully modular power supply built for modern gaming rigs. It meets ATX 3.1 standards and includes a native 12V-2x6 cable for direct GPU connections. The unit uses Japanese capacitors and carries an 80 Plus Gold efficiency rating. You get a 10-year warranty for long-term reliability. It fits well if you need extra headroom for high-end graphics cards.
Pros
- 850W output capacity
- ATX 3.1 and PCIe 5.1 ready
- Native 12V-2x6 connector
- Fully modular design
- 10-year limited warranty
Cons
- Heavier than the 750W alternatives at 7.15 pounds
- Higher wattage than the 750W list average
- Larger physical dimensions than compact 750W units
Good fit if
- You need extra power for high-end GPUs
- You want a native 12V-2x6 cable
- You prefer a 10-year warranty
Skip if
- You strictly need a 750W unit
- You have a small form factor case
- You want the lightest possible unit
Verdict: MSI MPG A850G 850W ATX 3.1 offers more power than the 750W alternatives. It suits builders who want extra headroom and a native 12V-2x6 cable for future-proofing.
Specifications side by side
| Spec | Corsair RM750e 750W ATX 3.1 Power Supply | Corsair RM750x Shift White 750W ATX Power Supply | Thermaltake Toughpower GT 750W Snow | Corsair RM750e 750W ATX 3.1 Power Supply | Corsair RM850x Shift 850W White ATX Power Supply | Corsair RM850x 850W Fully Modular ATX 3.1 PSU | MSI MPG 850W Gold ATX 3.1 Power Supply |
|---|---|---|---|---|---|---|---|
| Wattage | 750W | 750W | 750W | 750W | 850W | 850W | 850W |
| Efficiency Rating | Cybenetics Gold | 80 Plus Gold | 80 PLUS Gold | Cybenetics Gold | 80 Plus Gold | Cybenetics Gold | 80+ Gold |
| Modularity | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular | Fully Modular |
| ATX Version | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 | ATX 3.1 |
| PCIe Connector Type | 12V-2x6 | not stated | 12V-2x6 (12+4 pin) | 12V-2x6 | PCIe 5.1 | 12V-2x6 | 12V-2x6 |
| Fan Size | 120mm | 140mm | 120mm | 120mm | not stated | not stated | not stated |
| Warranty | not stated | not stated | 5 Year | not stated | not stated | not stated | 10 Year |
| Form Factor | ATX | ATX | ATX | ATX | ATX | ATX | ATX |
| PCIe Version | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 | PCIe 5.1 |
| Recommended Use | not stated | not stated | not stated | not stated | not stated | not stated | Gaming |
| Connector | 12V-2x6 Connector | not stated | not stated | 12V-2x6 Connector | not stated | 12V-2x6 Connector | 12V-2x6 Connector |
| Size | 750W | 750W | 750W | 750W | 850W | 850W | 850W |
| Dimensions | 5.91 × 5.51 × 3.35 inches | 6.3 × 5.91 × 3.39 inches | 2.32 × 2.17 × 1.34 inches | 5.91 × 5.51 × 3.35 inches | 6.3 × 5.91 × 3.39 inches | 2.3 × 3.39 × 5.91 inches | 5.91 × 5.91 × 3.39 inches |
| Weight | 3.3 pounds | 3.75 pounds | 2.44 pounds | 3.3 pounds | 3.75 pounds | 3.9 pounds | 7.15 pounds |
| Color | Black | White | White | Black | White | Black | not stated |
| Model | CP-9020295-NA/AM | CP-9020273-NA | TPD-750AH2FXG-3 | CP-9020295-NA | not stated | not stated | MPG A850G PCIE 5 |
Frequently asked questions
Does the Corsair RM750e support modern graphics cards?
Yes, the Corsair RM750e supports modern GPUs through its ATX 3.1 compliance and PCIe 5.1 standard. It includes a native 12V-2x6 connector, which simplifies connections for next-generation graphics cards. This setup ensures reliable power delivery for high-end components without requiring adapter cables.
How does the RM750x Shift differ from the RM750e?
The RM750x Shift features side-mounted connectors, offering cleaner cable management compared to the RM750e’s standard layout. It also carries an 80 Plus Gold efficiency rating, whereas the RM750e does not list a specific efficiency tier. The Shift is slightly larger at 6.3 inches in length.
Is the Thermaltake Toughpower GT suitable for white builds?
Yes, the Thermaltake Toughpower GT 750W Snow is designed for white-themed builds. It provides ATX 3.1 compliance and native PCIe 5.1 support. The unit is compact, measuring 2.32 inches in length, making it a solid choice for users who value silent low-load operation and clean aesthetics.
Which alternative offers more power than the 750W RM750e?
The MSI MPG A850G and Corsair RM850x Shift both offer 850W, providing more headroom than the 750W RM750e. These units support PCIe 5.1 and include 12V-2x6 connectors. They are ideal for high-end gaming PCs or demanding builds that require extra power for next-generation components.
Does the Corsair RM850x Shift have side-mounted connectors?
Yes, the Corsair RM850x Shift includes side-mounted connectors for improved cable management. It shares the same 6.3-inch length and 80 Plus Gold efficiency rating as the 750W Shift variant. This design helps keep mid-tower cases tidy while delivering robust power for high-end graphics cards.
What is the size of the Thermaltake Toughpower GT?
The Thermaltake Toughpower GT 750W Snow measures 2.17 inches in width, 1.34 inches in height, and 2.32 inches in length. Its compact dimensions make it suitable for smaller cases. The unit weighs 2.44 pounds and supports ATX 3.1 with PCIe 5.1 connectivity.