CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – White
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AI Verdict
This 750W fully modular ATX 3.1 and PCIe 5.1 power supply with a 12V-2x6 cable is for builders needing modern GPU compatibility in a compact 140mm casing.
This 750W PSU is a strong contender if you're building a new system with a modern GPU that needs a 12V-2x6 cable and ATX 3.1 compliance. Its compact 140mm length is a plus for smaller cases. However, the reported noise issues from some users mean it's not a guaranteed silent performer.
If absolute silence is your top priority, look for PSUs with a Cybenetics LAMBDA A- or A+ noise rating, or consider higher-tier Corsair RMx series models.
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Pros
- Includes a native 600W-capable 12V-2x6 cable for current-gen GPUs, meeting PCIe 5.1 and ATX 3.1 standards.
- Features a 120mm rifle bearing fan with Zero RPM mode for near-silent operation at lower loads.
- Equipped with 105°C-rated industrial-grade capacitors for consistent electrical performance.
- Compact 140mm-long casing allows for easier fit and cable management in smaller cases.
- Supports Modern Standby for quicker wake-from-sleep times and improved low-load efficiency.
- Backed by a 7-year warranty, providing extended support.
Cons
- Some users report audible clicking or whining noises, even at idle.
- The 12V-2x6 cable connects to two 8-pin PCIe connectors on the PSU side, which some might find less elegant than a single native connector.
- Limited real-world user reviews specifically for the 2025 model make long-term reliability harder to assess.
Dimension Scores
The PSU is Cybenetics Gold certified, offering up to 90% efficiency, and provides a dedicated 600W 12V-2x6 cable for modern GPUs.
It features a 120mm rifle bearing fan with Zero RPM mode, but user reports of clicking and whining noises prevent a higher score.
The use of 105°C-rated industrial-grade capacitors and a 7-year warranty indicate a focus on durability and reliability.
Its fully modular design and compact 140mm casing significantly aid in reducing cable clutter and improving routing.
Best For
- New PC builds featuring NVIDIA 40 Series GPUs or other PCIe 5.1 graphics cards.
- Compact PC builds where a 140mm PSU length is beneficial for cable routing.
- Users prioritizing modern power standards (ATX 3.1) and a dedicated 12V-2x6 cable.
Not Recommended For
- Silence-focused builds where any fan or coil noise is unacceptable.
- Budget-constrained builds, as there might be more cost-effective options without ATX 3.1/PCIe 5.1 compliance.
- Users who prefer a single native 12V-2x6 connector directly on the PSU.
Watch Out For
- Several users have reported clicking or buzzing noises from the PSU, even when the system is idle.
- The 12V-2x6 cable requires two 8-pin PCIe connections on the PSU side, which could be a routing consideration.
- The 2025 model has very few user reviews available, making it difficult to gauge widespread issues or long-term performance.
Full Specifications
| ASIN | B0DZXKXYGY |
| Brand | Corsair |
| Color | White |
| Series | CORSAIR RM750e |
| Wattage | 750 watts |
| Model Name | CORSAIR RM750e |
| Form Factor | ATX |
| Item Weight | 3.3 pounds |
| Manufacturer | Corsair |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 750 Watts |
| Item model number | CP-9020292-NA |
| Compatible Devices | Monitor |
| Product Dimensions | 5.91 x 5.51 x 3.35 inches |
| Item Dimensions LxWxH | 5.91 x 5.51 x 3.35 inches |
| Item dimensions L x W x H | 5.91 x 5.51 x 3.35 inches |
What Buyers Say
The biggest head-scratcher with this 2025 RM750e is the reported noise. Multiple Reddit users mention hearing clicking or whining, even when their system is just sitting there, which is a real bummer for a PSU designed to be low-noise. On the flip side, everyone seems to appreciate that it's fully modular and comes with that crucial 12V-2x6 cable right out of the box, making it ready for current-gen graphics cards. The compact size is also a recurring positive, especially for builds where space is tight. It's a bit of a mixed bag, with modern features clashing with potential audible annoyances.
“Man, I really wanted to like this thing for my new 4070 build, the 12V-2x6 cable is clutch, but this clicking sound is driving me nuts, especially when I'm just browsing. What gives, Corsair?”
Common Praise
- Includes the 12V-2x6 cable, making it ready for new GPUs without adapters.
- Fully modular cabling simplifies system building and reduces clutter.
- Compact 140mm length fits easily into various PC cases.
- ATX 3.1 and PCIe 5.1 compliance future-proofs the power delivery.
Common Complaints
- Users report clicking or whining noises from the unit, even at low loads.
- Some users experienced issues with damaged packaging upon delivery.
- The 12V-2x6 cable uses two 8-pin PCIe connectors on the PSU side, not a single dedicated port.
- Limited user feedback for the 2025 model makes it hard to confirm widespread issues or consistent performance.
Ownership Tips
- The 'low-noise' claim might not hold true for all units, as some develop audible coil whine or clicking.
- The included cables are flexible and easy to route, which is a small but appreciated detail during installation.
- Modern Standby works as advertised, with the system waking up noticeably faster from sleep.
- The white finish looks clean in matching builds, but it's purely aesthetic and doesn't impact performance.
Frequently Asked Questions
Does this PSU come with a 12V-2x6 cable for modern graphics cards?
Yes, it includes a native 600W-capable 12V-2x6 cable, making it compatible with NVIDIA RTX 40 Series and other PCIe 5.1 GPUs.
Is this power supply quiet?
It features a 120mm rifle bearing fan with a Zero RPM mode for low loads, designed to keep noise down. However, some users have reported audible clicking or whining noises.
What is the physical size of this PSU?
It has a compact 140mm-long casing, which helps with fitting into various PC cases and improves cable management space.
What kind of capacitors does it use?
The PSU uses industrial-grade, 105°C-rated capacitors for stable and reliable power delivery.
Is this compatible with the latest ATX standards?
Yes, it is Intel ATX 3.1 certified and PCIe 5.1 compliant, designed to handle transient power excursions from modern GPUs.
Buying Guide
When you're looking at a power supply, you're basically picking the heart of your PC. You need enough wattage for your components, especially your graphics card, but also consider efficiency to save on your power bill and how quiet it runs. Modern PSUs also need to keep up with new standards like ATX 3.1 and PCIe 5.1, especially if you're getting a new, power-hungry GPU.
Wattage (750W)
This number tells you the maximum power your PSU can deliver. Too little, and your PC won't run stably or might not even turn on. 750W is a sweet spot for many mid-to-high-end gaming PCs, especially with a single powerful graphics card.
ATX 3.1 & PCIe 5.1 Compliant with 12V-2x6 Cable
This is crucial for newer graphics cards. ATX 3.1 means the PSU can handle sudden power spikes from your GPU without shutting down, and the 12V-2x6 cable is the direct power connector for cards like NVIDIA's RTX 40 series, avoiding bulky adapters.
Cybenetics Gold Efficiency
This rating indicates how much power from the wall actually reaches your components, with less wasted as heat. Gold means it's pretty efficient (around 87-90% at typical loads), saving you a bit on electricity and keeping your system cooler.
Fully Modular
This means you only plug in the cables you actually need. It makes building your PC much cleaner, improves airflow inside your case, and simplifies cable management compared to non-modular or semi-modular options.
Alternatives
If this 750W unit isn't enough, look for PSUs with higher wattage (e.g., 850W or 1000W) that still maintain ATX 3.1 and PCIe 5.1 compliance. If you need absolute silence, search for models with higher Cybenetics LAMBDA noise ratings or a different fan bearing type.
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