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Corsair RM750e (2023) Fully Modular Low-Noise Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors - 80 Plus Gold Efficiency - Modern Standby Support - Black
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AI Verdict
This 750-watt, 80 Plus Gold, ATX 3.1 power supply with fully modular cabling is for PC builders needing modern GPU support on a budget.
This 750-watt, 80 Plus Gold unit with ATX 3.1 and PCIe 5.1 compliance is a strong fit for most modern PC builds, especially considering its fully modular design for cable management. It provides the necessary power and connections for current-gen GPUs.
If you're building a very high-end system or are extremely sensitive to noise, consider a power supply with higher-tier internal components and a larger fan, like a Corsair RMx series, for potentially quieter operation and better thermal performance.
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Pros
- ATX 3.1 and PCIe 5.1 compliant, including a native 12V-2x6 GPU cable for modern graphics cards.
- Fully modular cabling means you only connect the cables your system build needs, reducing clutter.
- Features 105°C-rated industrial-grade capacitors for consistent, reliable power delivery.
- Supports Modern Standby for faster wake-from-sleep times and improved low-load efficiency.
- Operates with a Zero RPM fan mode for near-silent operation at lower loads.
- Backed by a seven-year warranty, which is standard for this class of power supply.
Cons
- Some users have reported instances of coil whine or noticeable fan noise under load.
- Efficiency can decrease when operating under higher temperatures.
- Internal components are considered mid-tier compared to higher-end options.
- The number of SATA connectors might be limited for builds with many storage drives (4 SATA connectors).
- There's a potential risk of overload with the 12V-2x6 connector in specific high-demand scenarios.
Dimension Scores
It's 80 Plus Gold certified, offering up to 90% efficiency, and maintains stable voltage outputs within ATX specifications.
It includes a Zero RPM fan mode for silent operation at low loads, but some users have reported coil whine or fan noise at higher loads.
It uses 105°C-rated industrial-grade capacitors and a robust resonant LLC topology with DC-DC conversion.
The fully modular design allows for connecting only necessary cables, significantly improving internal case airflow and aesthetics.
Best For
- Building a new PC with a current-generation GPU requiring a 12V-2x6 connector.
- PC users looking for an 80 Plus Gold certified power supply without spending a lot.
- System builders who prioritize clean cable management with fully modular cables.
- Anyone needing a 750-watt power supply for a mainstream gaming or productivity PC.
Not Recommended For
- Users extremely sensitive to any potential fan noise or coil whine.
- High-end PC builds pushing components to their absolute limits, where top-tier internal components are preferred.
- Systems requiring more than four SATA power connections without adapters.
Watch Out For
- Some units exhibit coil whine, which can be audible and distracting for users seeking a silent PC.
- Fan noise can become noticeable at higher loads, despite the Zero RPM mode at low loads.
- Efficiency might not hold up as well in hotter operating environments compared to more premium PSUs.
- The 12V-2x6 connector, while compliant, carries a risk of overload in extreme cases.
Full Specifications
| ASIN | B0BYR1BXC6 |
| Brand | Corsair |
| Color | Black |
| Series | RM750e |
| Voltage | 240 Volts |
| Wattage | 750 watts |
| Model Name | RM750e |
| Form Factor | ATX |
| Item Weight | 3.27 pounds |
| Manufacturer | Corsair |
| Connector Type | ATX |
| Cooling Method | Air |
| Output Wattage | 750 |
| Item model number | CP-9020262-NA |
| Compatible Devices | Personal Computer |
| 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
Many users are drawn to the RM750e for its ATX 3.1 compliance and included 12V-2x6 cable, making it a forward-looking choice for new builds. While its fully modular design is consistently praised for simplifying cable management, there's a noticeable split in user experience regarding noise. Some report it's super quiet, with the fan rarely spinning, while others have experienced coil whine or a louder fan than expected, especially when compared to the RMx series.
“Man, I needed a PSU for my new RTX card and this one had the 12VHPWR cable, which was a lifesaver. It's mostly quiet, but sometimes I swear I hear a little whine when gaming hard, like a tiny mosquito in my PC. Still, for the price, it got the job done.”
Common Praise
- The fully modular cables make building and cable routing much cleaner and easier.
- Includes the 12V-2x6 cable, which is essential for newer GPUs.
- Quiet operation at low power draws due to the Zero RPM fan mode.
- Provides stable and reliable power, even under moderate loads.
- Considered a strong value for its features, especially when on sale.
Common Complaints
- Some units produce audible coil whine, which can be irritating.
- The fan can become loud under higher loads, contradicting expectations of a 'low-noise' unit.
- Internal components are not as premium as those found in Corsair's RMx series.
- Efficiency might not be as consistent in warmer environments.
Ownership Tips
- The included cables are moderately flexible, but not braided, which might matter for some aesthetic builds.
- The compact 140mm length is a plus for smaller cases, offering more room for cable routing.
- The power supply's fan often remains off during light tasks, contributing to a quieter desktop experience.
- While it has ATX 3.1, some users still prefer the RMx series for perceived higher build quality and quieter fans.
Frequently Asked Questions
Does this power supply come with the new 12V-2x6 cable for RTX 40 series GPUs?
Yes, the Corsair RM750e (2023) is PCIe 5.1 compliant and includes a native 12V-2x6 GPU cable, making it ready for modern graphics cards.
Is this power supply quiet during normal use?
It features a Zero RPM fan mode, meaning the 120mm rifle bearing fan won't spin at low loads, resulting in near-silent operation. However, some users have reported coil whine or fan noise under higher loads.
What does 'fully modular' mean for this PSU?
Fully modular means you only plug in the cables your PC needs, which helps reduce cable clutter inside your case and makes building or upgrading easier.
What is the warranty period for the RM750e?
The Corsair RM750e comes with a seven-year warranty, which is a standard duration for power supplies in this category.
Is this PSU good for a gaming PC?
Yes, with 750 watts, 80 Plus Gold efficiency, and ATX 3.1/PCIe 5.1 compliance, it's suitable for many gaming PCs, providing stable power for high-performance components.
Buying Guide
When you're picking a power supply, you're basically choosing the heart of your PC. You need enough wattage to power all your components, especially your graphics card. Efficiency ratings like 80 Plus Gold tell you how much power is wasted as heat, so higher efficiency means less wasted energy and often less heat. Modular cabling helps keep your PC tidy, which improves airflow and makes future upgrades easier.
Wattage (750 watts)
This is the maximum power your PSU can deliver. Think of it like the horsepower of a car; you need enough to get where you're going, but too much is just wasted potential. 750 watts is enough for most mid-to-high-end gaming PCs with a single powerful GPU.
80 Plus Gold Efficiency
This certification means the PSU is at least 87% efficient at 100% load, 90% at 50% load, and 87% at 20% load. It's like fuel efficiency for your car; a Gold rating means less electricity is wasted as heat, saving you a tiny bit on your power bill and keeping your case cooler than a Bronze or White rated unit.
ATX 3.1 & PCIe 5.1 Compliant
This is crucial for modern systems. ATX 3.1 ensures the PSU can handle rapid power spikes from high-performance components, especially new graphics cards. PCIe 5.1 means it has the correct connector (12V-2x6) to directly power the latest GPUs without needing adapters, which is a big deal for safety and reliability.
Fully Modular
Imagine building with LEGOs, but you only use the bricks you need. Fully modular means all cables detach from the PSU. This lets you only connect the cables your specific components require, making your PC build much cleaner, improving airflow, and simplifying troubleshooting or upgrades down the line.
Alternatives
If this doesn't fit, look for power supplies with higher wattage if you have multiple GPUs or extreme overclocking plans, or prioritize units with Japanese capacitors and larger fans if absolute silence is your top concern.



