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Corsair

CORSAIR RM750x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

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Arrives Wednesday, Jul 15
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Style: RMx (2024) - ATX 3.1


Size: 750W


Features

  • Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.
  • Cybenetics Gold-Certified: Rated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.
  • ATX 3.1 Compliant: Compliant with the ATX 3.1 power standard from Intel, supporting PCIe 5.1 and resisting transient power spikes.
  • Native 12V-2x6 Connector: Ensures compatibility with the latest graphics cards with a direct GPU to PSU connection no adapter necessary.
  • Embossed Cables with Low-Profile Combs: Sleek, ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.

Description

CORSAIR RMx Series Fully Modular Low-Noise Power Supplies deliver quiet, dependable power with Cybenetics Gold efficiency to your PC. Fully modular, ultra-flexible embossed cables make PC builds easy, as you connect only the cables your system requires. Compliant with the ATX 3.1 power standard from Intel®, RMx PSUs have the connections needed to power today’s demanding PC hardware including a native 12V-2x6 connector. 100% Japanese 105°C-rated electrolytic capacitors deliver fantastic electrical performance, while a 140mm FDB fan provides low noise cooling. Backed by a ten-year warranty, RMx PSUs are the gold standard for many years to come.

Model Name: RMx


Brand: Corsair


Compatible Devices: Monitor


Connector Type: ATX


Output Wattage: 750 Watts


Form Factor: ATX


Wattage: 750 watts


Cooling Method: Air


Item dimensions L x W x H: 2.3 x 3.39 x 5.91 inches


Item Weight: 3.9 Pounds


Compatible Devices: Monitor


Connector Type Used on Cable: ATX


Output Wattage: 750 Watts


Form Factor: ATX


Wattage: 750 watts


Cooling Method: Air


Power Supply Design: Full Modular


Connector Quantity: 2


Number of Fans: 1


Maximum Input Voltage: 264 Volts (AC)


Minimum Input Voltage: 110 Volts (AC)


Upper Temperature Rating: 105 Degrees Celsius


System Bus Connector Type: ATX


Model Name: RMx


Brand: Corsair


Manufacturer: Corsair


UPC: 840006676898


Mfr Part Number: CP-9020285-NA


Model Number: CP-9020285-NA


Warranty Description: 10 Year Manufacturer


Built-In Media: Item


Item Dimensions: 2.3 x 3.39 x 5.91 inches


Item Weight: 3.9 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jul 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • A Power Supply I Don’t Have to Think About (And That’s a Good Thing)
Style: RMx (2024) - ATX 3.1 Size: 750W
I’ve used a lot of PSUs over the years, and the Corsair RM750x Power Supply is one of those components I install and then completely forget about—which is exactly what I want. Clean Build Thanks to Full Modularity The fully modular design made my build way cleaner. I only plugged in the cables I actually needed, which helped a lot with airflow and cable management. No extra clutter stuffed behind the motherboard tray. Quiet Enough That I Don’t Notice It What really stood out to me is how quiet it is. Under normal loads, the fan barely spins (or doesn’t at all), so my system stays silent. It’s one of those upgrades you don’t notice until you realize your PC just isn’t making noise anymore. Handles Modern Hardware Without Stress With ATX 3.1 and native 12V-2x6 support, I don’t have to mess with adapters for newer GPUs. That alone makes it feel more “future-ready” compared to older PSUs. Stable Power = Stable System I’ve had zero issues with stability—no random shutdowns, no weird behavior under load. Whether I’m gaming or running heavier workloads, it just stays consistent. Feels Like a Quality Component Everything about it feels solid—from the cables to the housing. It doesn’t feel cheap, and that gives me confidence when it’s powering expensive parts. ... show more
Reviewed in the United States on April 29, 2026 by James C.
    • Works great on a makeshift Plex Server build Works great on a makeshift Plex Server build
Style: RMx (2024) - ATX 3.1 Size: 750W
Review Image by zerokarma
Review Image by zerokarma
I used this Corsair on a makeshift Plex Server build which is full of repurposed older parts, there was previously a 15 year old power supply in this case which needed to be upgraded so I picked 750w model for Corsair's reputation and it's power efficiency. The PSU is very silent, dead quiet because the fans don't run when it's at low usage. This Plex server build is only pulling approximately 80W under normal usage with the Corsair. On the ancient 15 year old power supply it was pulling approximately 120W under the same usage, so this Corsair power supply is giving me a 40W savings due to it's increased efficiency which is awesome. The build quality feels excellent and the cables provided are high quality and flexible making them easy to work with and route within the case. If you want to get fancy you could upgrade the cables to something like Cablemod cables but for my use with this Plex server it is not necessary as this wasn't meant to be a "pretty" build. This is my second Corsair power supply, I also have another model in my main system which has been running for a couple years without any issues. Most of Corsair's power supplies are on the high end of the PSU Tier list, google the PSU Tier List if you want to see it's exact rating among all other power supplies. ... show more
Reviewed in the United States on May 13, 2025 Reviewed in the United States on May 13, 2025 by zerokarma
    • Very solid power supply, I like the newer 12 pin 12VHPWR cable with a 5070 Ti
Style: RMx (2024) - ATX 3.1 Size: 750W
Very sturdy, solidly built power supply. Absolutely quiet, no coil whine, been performing flawlessly in my new AM5 PC with a 5070 Ti. I like the new 12VHPWR cable that connects directly to the GPU with a single connector. I vaguely remember hearing stories about problems with that connector and power hungry gpus but it looks like it's less of an issue now and is working fine for me. The included cables are all high quality as well. I also like the fan control knob, it's a very thoughtful feature, I don't see that on many PSUs and I love physical controls. I believe I kept mine on silent mode but either way I have not had any reason to change it. Overall, no complaints at all other than feeling like maybe I should have gone with 850w but I think 750w should be more than enough for the life of my PC. ... show more
Reviewed in the United States on December 27, 2025 by zo
    • Great PC Power Supply. Quiet.
Style: RMx (2024) - ATX 3.1 Size: 750W
Great power supply for the latest computer build. Quiet. Highly recommend.
Reviewed in the United States on April 4, 2026 by Edric Tong
    • Great PSU, very quiet!
Style: RMx (2024) - ATX 3.1 Size: 750W
Love it, works great, very quiet!
Reviewed in the United States on February 18, 2026 by Eric Draven
    • I like it
Style: RMx (2024) - ATX 3.1 Size: 750W
Bought this for my PC absolutely love it. It’s durable it functions amazingly the size is perfect. It fits in almost any computer cables. Could be a little bit better for management, but it’ll do and it does hold a lot and doesn’t overheat.
Reviewed in the United States on March 7, 2026 by Jasmine
    • Ultra high quality, worth your money, something you can hang your hat on!
Style: RMx (2024) - ATX 3.1 Size: 750W
SOLID POWER. Full Japanese capacitors, ultra efficient, smart cooling, smart POWER! Modular cables gives even better airflow in your case. You wont go wrong with this product. I upgraded my old PSU with this one not because the old Corsair PSU failed but because my power requirements went up. I'd trust this brand of PSU to outlast yours and my own PC builds. RMx series has been the ONLY thing that lasts through PC rebuilds. Every other component will get upgraded/deleted but this PSU and the case itself will still remain. You wont regret buying it. ... show more
Reviewed in the United States on December 8, 2025 by Brian Collins
    • Buen producto, pero con mejoras sería exelente.
Style: RMx (2024) - ATX 3.1 Size: 750W
La fuente se escucha una clase de click al encender o apagar la fuente, Corsair dice que es normal y el causante es el relee pero es bastante molesto para alguien que tiene un setup totalmente silencioso, en temas de calidad de construcción y eficiencia es una joya absoluta, canal de 12V a 12.024V con mínimos de 11.98V , canal de 5V a 5.05V con mínimos de 4.991V y el canal de 3V sin mínimos, todo hecho con pruebas exigentes de 6 horas con CO y PBO custom, pruebas en Overclock, pasadas, en calidad es exelentes, deficiencia son sus conectores que en Case grandes los cables son muy cortos, de resto gran producto. ... show more
Reviewed in the United States on August 15, 2025 by David S.

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