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⚡ Power up like a pro—quiet, efficient, and future-proof.
The CORSAIR RM1000x is a fully modular 1000W power supply designed for professional-grade PC builds. It boasts Cybenetics Gold certification for up to 91% efficiency, complies with the latest ATX 3.1 and PCIe 5.1 standards, and features native 12V-2x6 connectors for seamless GPU compatibility. With ultra-flexible embossed cables, whisper-quiet cooling, and premium Japanese capacitors, it delivers reliable, low-noise power backed by a 10-year warranty—making it the ultimate choice for millennial managers who demand performance and style.





| ASIN | B0FLGMTSRQ |
| Best Sellers Rank | #2 in Computer Power Supplies |
| Brand | Corsair |
| Compatible Devices | Monitor |
| Connector Type | ATX |
| Connector Type Used on Cable | ATX |
| Cooling Method | Air |
| Customer Reviews | 4.7 out of 5 stars 3,523 Reviews |
| Form Factor | ATX |
| Item Dimensions | 2.3 x 3.39 x 5.91 inches |
| Item Weight | 6.9 Pounds |
| Manufacturer | Corsair |
| Maximum Input Voltage | 120 Volts (AC) |
| Mfr Part Number | CP-9020271-NA/AM |
| Minimum Input Voltage | 120 Volts (AC) |
| Model Name | RM1000x |
| Model Number | CP-9020271-NA/AM |
| Number of Fans | 1 |
| Output Wattage | 1000 Watts |
| Power Supply Design | Full Modular |
| System Bus Connector Type | ATX |
| UPC | 840440415190 |
| Unit Count | 1.0 Count |
| Warranty Description | 10 Year Manufacturer |
| Wattage | 1000 watts |
Y**V
Top-tier internal components, Platinum-certified, Stable
Excellent power supply. I previously had a 2017 RM850x with very thick cables that were a nightmare to manage. Now, 9 years later, I’ve upgraded to this RM1000x, which has very flexible and easy-to-route cables. Surprisingly, I received a Platinum-certified unit instead of the Gold one! This PSU stands out for its top-tier internal components (excellent element base). It’s dead silent, runs stably, and shows no voltage drops. The only downside is that it only comes with 2 cable combs
S**.
With great power comes great peformance
It's a great power supply. Modular and not too big of a unit. I'm using to to power an Intel 14900K CPU and Geforce RTX 5080 GPU. It also powers a handful of peripherals. It does the job with plenty of power to spare. I especially appreciate the native 16pin GPU connector. Don't hesitate and just buy it. You won't regret it.
A**.
Nice cables and low noise
Only owned this power supply for about 3 days but I really like it. its quiet and I really like the cables. I also own the 750watt version and the cables seem way cheaper and harder to work with. while this unit has each wire sleeved individually the whole cable is sleeved in the 750 watt version making it hard to bend and do any wire management. i mostly got this powersupply because i bought a used 3080 that needs 3 pcie for its power and my motherboard also requires 3 aswell. 2 for the cpu and one for the board itself. this is a very good power supply if your kind of still wanting to use your old pc parts with a new power hungry motherboard/cpu while also still has a new 12V-2x6 port/cable. very happy. if the power supply fails or something else ill do a edit and update this review.
Y**.
Good PSU for the price and reliable
Quality is very good, size is fit in every case I think. Control of the fans and good modular psu.
J**C
Good stuff
Quaility power supply. Powers up my high end gaming pc with no issues.
C**E
Corsair RM1000x Fully Modular ATX Power Supply - 80 Plus Gold
Corsair RM 1000x Fully Modular ATX Power Supply - 80 Plus Gold is reliable, has a quiet operation and is easy to use.
J**A
Great PSU
Had to RMA a Seasonic Focus PSU because I now know that it couldn't handle the transient spikes of my 9070xt. Frequent driver crashes, resets. Thought it was my GPU. Decided to go back to Corsair as my previous PSU from this brand never failed me and I couldn't be happier. Any issue I previously had has completely disappeared with the 2024 model of the RM1000x. Really appreciate the 4 PCIe cables, as I already needed one for the iCue link hub and it still leaves room for a future upgrade.
D**Y
Clean power, no issues
Great power supply. Had all the right connectors for a new z890 motherboard and 5080 GPU.
L**.
Boa fonte e envio
chegou na data estipulada, completo
C**N
Excelente calidad y durabilidad
La mejor fuente de poder que puedes conseguir para un ensamble a largo plazo
H**D
I liked
I liked
G**B
Calidad Corsair
Una excelente GPU, soporta 4080/90 y procesadores de alta gama, protege del fenómeno "dirty electricity" y proporciona estabilidad a los componentes de la pc, por algo se sigue vendiendo tan bien a pesar de ser un modelo con unos años, importante combinarla con un ups/no break.
Z**F
Great PSU, working so far
It has all the necessary cables, and is small to fit most PC's. Great form factor and power efficiency. It also has 0 rpm mode at low loads so it's super quiet. Although the cables that come with it area quite thick, which may lose a problem to remark PC cases
Trustpilot
1 day ago
1 week ago