Corsair RM1000x ATX 3.0

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💡 How to pick a power supply
What to look for:
  • Wattage exceeds total system draw by 20-30% headroom
  • 80+ Gold or higher for efficiency
  • Modular cables reduce clutter in your case
💰 Mid-range builds: 650-750W. High-end with RTX 4080+: 850W-1000W+
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ProductWattsRatingModularColorValuePrice
Corsair RM1000x ATX 3.0 PSU
Corsair RM1000x ATX 3.0
Corsair★★★★★4.5
1000W
80+ Gold
Full
Black
—
$166.24
Specifications
Watts1000W
Rating80+ Gold
ModularFull
Form FactorATX
ATX 3.0Yes
Fan Size135mm
depth160
ColorBlack
value21
RGBNo
Fans1
Customer Reviews★★★★★5.0 · 5 reviews
★★★★★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
Yulian Orlov · 2026-02-23 · via amazon
★★★★★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.
Scott H. · 2026-05-03 · via amazon
★★★★★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.
arron b. · 2026-04-29 · via amazon
★★★★★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.
Yervand M. · 2026-04-06 · via amazon
★★★★★Good stuff
Quaility power supply. Powers up my high end gaming pc with no issues.
JC · 2026-05-12 · via amazon
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$166.24
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Below MSRP
Was $169 → $166.24
2% off
Corsair RM1000x ATX 3.0 PSU