CORSAIR RM750x ATX 3.1 PCIe 5.1 Ready Fully Modular 750W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black
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AI Verdict
This 750W, Cybenetics Gold efficiency, ATX 3.1 compliant power supply with a native 12V-2x6 connector is for PC builders needing modern GPU power delivery and quiet operation.
This 750W power supply is ATX 3.1 compliant with a native 12V-2x6 connector, making it ideal for modern systems with demanding GPUs that benefit from PCIe 5.1 power delivery and transient spike resistance. Its fully modular design simplifies cable management, and Cybenetics Gold efficiency helps reduce heat and noise.
If you plan on running a very high-end GPU with a high TDP CPU, consider an 850W or higher wattage PSU for more headroom.
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Pros
- Cybenetics Gold-Certified for up to 91% efficiency, reducing power consumption and heat.
- ATX 3.1 compliant, supporting PCIe 5.1 and resisting transient power spikes for system stability.
- Native 12V-2x6 connector ensures direct compatibility with the latest graphics cards without adapters.
- Fully modular cabling allows you to connect only the necessary cables, simplifying PC builds.
- Features a 140mm Fluid Dynamic Bearing fan for low-noise cooling.
- Built with 100% Japanese 105°C-rated electrolytic capacitors for robust electrical performance.
Cons
- Some users report the fan noise becomes noticeable under heavy system load.
- Efficiency can decrease in hot operating environments, potentially leading to more heat or noise.
- The 160mm length is slightly larger than standard ATX, which might cause fit issues in compact cases.
- May not include a third PCIe cable, which some AMD cards requiring three might need.
Dimension Scores
Cybenetics Gold-Certified for up to 91% efficiency and capable of delivering full power at 47 degrees Celsius.
Features a 140mm FDB fan and operates silently at low to mid loads, though it can become audible under heavy system stress.
Constructed with 100% Japanese 105°C-rated electrolytic capacitors and supported by a ten-year warranty.
Its fully modular design with ultra-flexible embossed cables and low-profile combs significantly simplifies cable routing and organization.
Best For
- PC builds with high-end GPUs that require a native 12V-2x6 connector.
- Systems where efficient power delivery is prioritized to minimize heat and acoustic output.
- Builders who value clean aesthetics and simplified cable management through fully modular options.
Not Recommended For
- Small form factor PC cases with limited PSU clearance due to its 160mm length.
- Users on a very strict budget seeking the lowest-cost 750W power supply.
- Builds with older graphics cards that do not benefit from ATX 3.1 or PCIe 5.1 features.
Watch Out For
- The 160mm length might cause clearance issues in cases with less than 30mm (approximately 1 inch) of side panel space.
- Some users found the modular connectors to be positioned inconveniently for cable routing in certain older case designs.
- The power supply's efficiency can drop in hot environments, potentially leading to higher internal case temperatures or increased fan activity.
- If you have an AMD graphics card that specifically requires three PCIe cables, this 750W model might not include the third cable, necessitating a separate purchase.
Full Specifications
| ASIN | B0FLG9Y4HZ |
| Brand | Corsair |
| Color | Black |
| Series | RM750x |
| Wattage | 750 watts |
| Model Name | RM750x |
| Form Factor | ATX |
| Item Weight | 3.88 pounds |
| Manufacturer | Corsair |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 750 Watts |
| Item model number | CP-9020285-NA/AM |
| Compatible Devices | Monitor |
| Product Dimensions | 2.3 x 3.39 x 5.91 inches |
| Item Dimensions LxWxH | 2.3 x 3.39 x 5.91 inches |
| Item dimensions L x W x H | 2.3 x 3.39 x 5.91 inches |
What Buyers Say
Users often point out the ATX 3.1 compliance and the native 12V-2x6 connector as key selling points, especially for newer NVIDIA GPUs, eliminating the need for adapters. While praised for its quiet operation at lower loads, some report increased fan noise when the system is under heavy stress. The fully modular cables are a consistent highlight for making builds cleaner and easier. There's also discussion around the 160mm length, which can be a tight fit in some older or smaller cases.
“Finally, a PSU that doesn't need a stupid adapter for my RTX 40-series card, but man, when I'm gaming hard, that fan definitely lets you know it's working.”
Common Praise
- Native 12V-2x6 connector eliminates the need for GPU power adapters.
- Fully modular cables contribute to much cleaner PC builds.
- Quiet operation during typical use and lighter system loads.
- ATX 3.1 compliance provides better power management for modern GPUs.
- The 10-year warranty provides long-term peace of mind for users.
Common Complaints
- Fan noise becomes noticeable under heavy system load.
- The 160mm length can be a tight fit in some PC cases.
- Efficiency can decrease when operating in hot environments.
- May not include enough PCIe cables for certain AMD cards that require three.
Ownership Tips
- The embossed cables are actually pretty flexible and route well, not stiff like some other brands, making cable management less of a headache.
- The fan stays off completely during light browsing or video watching, which is a nice touch for quiet computing when you're not pushing the system.
- Even with the 12V-2x6, you still get plenty of traditional PCIe connectors for other components or older GPUs, so you're not limited.
- The 160mm length is something you really need to double-check in your case's specifications; it's not a universal fit and can be a tight squeeze.
Frequently Asked Questions
Does this PSU come with a 12V-2x6 cable?
Yes, it includes a native 12V-2x6 connector for direct GPU connection, eliminating the need for an adapter.
Is this power supply quiet during operation?
It features a 140mm FDB fan for low-noise cooling and is generally silent at low to mid loads, but some users report it's not the quietest under heavy load.
Is this PSU compatible with older graphics cards?
Yes, it is fully modular and includes standard PCIe 6+2 pin connectors in addition to the 12V-2x6, so it works with older cards.
What is the warranty period for this power supply?
Corsair backs the RMx series with a ten-year warranty, indicating confidence in its long-term reliability.
Will this power supply fit in my PC case?
The PSU has a length of 160mm, which is slightly larger than standard ATX; you should check your case's PSU clearance, especially if it's a smaller form factor.
Buying Guide
When you're picking a power supply, you're essentially choosing the heart of your PC. It needs to deliver stable power to all your components, especially your graphics card and CPU. Think about how much power your system actually needs, and then add a bit of headroom for future upgrades or power spikes. A higher efficiency rating means less wasted electricity and less heat generated inside your case.
Wattage (750W)
This is the total power your PSU can deliver. If your components (CPU, GPU, drives, etc.) collectively demand more than 750 watts, your system won't run stably or might not even turn on. For most mid-to-high-end gaming PCs, 750W gives you enough juice without going overboard.
Cybenetics Gold Efficiency (up to 91%)
This rating tells you how much of the power drawn from the wall actually reaches your components, versus how much is lost as heat. Gold means 91% efficient at typical loads, so less energy is wasted, your power bill is lower, and your PC runs cooler.
ATX 3.1 & Native 12V-2x6 Connector
This is crucial for modern, powerful graphics cards. ATX 3.1 handles rapid power changes better, preventing system crashes, and the 12V-2x6 connector provides a direct, clean power path to your GPU, avoiding bulky and potentially unreliable adapters.
Fully Modular
A fully modular power supply means you only plug in the cables you actually need for your components. This makes building your PC much easier, improves airflow inside your case by reducing cable clutter, and just looks a lot tidier.
Alternatives
If you need more power for an extremely high-end system or multi-GPU setup, look for PSUs with 850W or 1000W ratings. For smaller cases, prioritize PSUs with a shorter length, typically 140mm.
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