Buy Now, Pay Later
As low as
$28.33
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Oct 22
Recently Viewed
Style: RMx (2024) - ATX 3.1
Size: 1000W
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: 1000 watts
Form Factor: Internal
Wattage: 1000 watts
Cooling Method: Air
Item dimensions L x W x H: 2.3 x 3.39 x 5.91 inches
Item Weight: 6.9 pounds
Compatible Devices: Monitor
Connector Type Used on Cable: ATX
Output Wattage: 1000 watts
Form Factor: Internal
Wattage: 1000 watts
Cooling Method: Air
Power Supply Design: Full Modular
Current Rating: 25 A
Number of Fans: 1
Maximum Input Voltage: 240 volts_of_alternating_current
Minimum Input Voltage: 100 volts_of_alternating_current
System Bus Connector Type: ATX
Item Dimensions: 2.3 x 3.39 x 5.91 inches
Item Weight: 6.9 pounds
Model Name: RMx
Brand: Corsair
Number of Items: 1
Manufacturer: Corsair
UPC: 840006667698
Built-In Media: Item
Model Number: CP-9020271-NA
Mfr Part Number: CP-9020271-NA
Warranty Description: 10 Year Manufacturer
Item Highlight: Native 12V-2x6 Connector, Fully Modular, Low-Noise, Cybenetics Gold, NA
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Oct 22
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Style: RMx (2024) - ATX 3.1
Size: 1000W
My last PSU was an EVGA 750w that has lasted 10+ years, and still going strong through multiple builds. When I built a new system recently I figured I'd get ahead a bit and purchase another with a bit of headroom. There are a lot of options now and I saw that this particular psu was well recommended. It's been a few days now and it seems perfectly stable. It's actually smaller in dimensions than my old evga, fits well in a Silverstone GD11 case. The modularity is a must to me but I wasn't expecting the cables to be individually sheathed like they are. They look really nice in the case and are easily manipulated into a position out of the way. I can tell thing gets flooded with power as it turns on as all my lights dim but after that initial dump, it's good. Only time can really tell with these units but at the moment I'm happy I went with Corsairs RMx series.
...
show more
Reviewed in the United States on August 13, 2026 by Blakk
Style: RMx (2024) - ATX 3.1
Size: 1000W
I bought this Corsair RM1000x ATX 3.1 (2024) PSU to replace a faulty ASRock PSU. As one other review mentioned, the Cybenetics rating on the box for power efficiency has been recently updated from Gold to Platinum, which will help keep long term energy costs down for people who live in areas with expensive electricity. When unboxed, the power supply feels and looks like a premium product, and indeed it is. The modular cables in the box all come with individually sleeved wires, and the 12V 2x6 connector and ATX 24 pin connectors come with clamshell style cable combs preinstalled, which seems to be a newer development with this unit. I looked at multiple tech site reviews of this power supply and the only one with cable combs I found was the Kit Guru review, and those were manually installable traditional style combs. The cables did have a bit of a petrochemical smell to them, but it was far better than the ASRock unit I replaced. The cables on the RM1000x are also longer and more flexible than on the ASRock unit, making routing in my mid-tower case easier, specifically for the CPU (length) and ATX 24 pin (flexibility). The power supply performs exceptionally well, making absolutely no coil whine noise at any load, and works completely silently at loads below 500 watts. The fan control knob on the back of the unit comes out of the box set to 0 RPM low noise mode, leaving the fan off until the aforementioned 500 watt limit is exceeded. If you don't care about 0 RPM low noise mode, you can adjust the knob clockwise until it clicks, at which point you're manually controlling the fan, allowing you to set a constant fan speed anywhere in the fans RPM range. One thing to note is that the 12V 2x6 connector that comes in the box only has 2 of the four sense pins, but this is totally fine, as it powers my RTX 5080 without issue, so don't be concerned that two sense wires are "missing". I was extremely lucky to get this unit at a cheaper price only a day before it raised to its current price, but even around the $200 mark, this power supply is worth the price. Overall I give this power supply a 9/10, and only because I don't like that the fan is gray instead of black, which honestly is likely a complete non-issue for most people.
...
show more
Reviewed in the United States on May 31, 2025 by Marlena
Style: RMx (2024) - ATX 3.1
Size: 1000W
Great power supply with high quality wires, runs quiet, plenty of connections for multiple video cards.
Reviewed in the United States on September 27, 2026 by David Johnson
Style: RMx (2024) - ATX 3.1
Size: 1000W
Pros: - Only plug in the cables you actually need - simplified cable management - Quiet fan that only kicks on under load - Straightforward install, great for hobbyist-level builders Cons: - I didn’t find it sooner Full Review: I brilliantly managed to short out the power supply on my PC (PSA: Don't plug a USB-C cable into a USB-A port if you don't want to risk taking out your power supply...), and I bought this Corsair RM1000x in a pinch because it would arrive the quickest. I’m more of an inquisitive hobbyist than a tech expert so had assumed a power supply is just a power supply, but this one had a few features I lucked out on. Super clean and minimal cabling - no medusa-style tangle of wires coming out of the box, just plug in what you need. It took care of the rats nest I had previously by not having to hide the unnecessary cables inside the case. As for the cables I did need, I have an ATX mid-tower case and cable lengths were perfect - not too tight or too slack. The fan stays off during low-demand tasks, then spins up when I’m processing video or doing something more power intensive. It’s quiet when it does turn on, and most of the time it’s completely silent. If you’ve ever blown a power supply and need a replacement you won’t regret, this is it. Honestly, I wish I had this one from the start — it’s one of those parts that just works and makes your build cleaner and quieter.
...
show more
Reviewed in the United States on April 30, 2025 by Chris
Style: RMx (2024) - ATX 3.1
Size: 1000W
Best premium quality cables I’ve ever seen , setting up was also easy!
Reviewed in the United States on September 16, 2026 by Abdul Rahman Shaik
Style: RMx (2024) - ATX 3.1
Size: 1000W
Purchased the PSU in April of 2025, it died yesterday. Had it on a conditioned power line with metrics on amperage and power draw - 1.1 amps at time of death, voltage was stable at 120.6V. 89.6 watts power draw average with the max spike in the 5 minute period it died at 134 watts. For a gold, supposedly A+ tier class PSU, this thing croaked while barely under load not even 1.5 years after purchase. Got an MSI A1000PLS as a replacement and connected everything today and the machine powered right back up with zero issues, so it was definitely the PSU. Not going to buy another Corsair PSU ever again.
...
show more
Reviewed in the United States on September 22, 2026 by Ron S
Style: RMx (2024) - ATX 3.1
Size: 1000W
Corsair RM1000x (2024/2025 Refresh) I’ve been using the RM1000x series for years, but this latest refresh is a must-buy if you're running high-end hardware. Here is why this specific model is a step above the rest: The 12V-2x6 Safety Upgrade: This isn't just a rebranded cable. The 12V-2x6 standard fixes the "melting" issues from the older 16-pin designs by using shorter sense pins. If the cable isn't 100% seated, the PSU simply won't send full power, protecting your GPU from thermal damage. It's a huge peace of mind for anyone with a 40-series or 50-series card. Which was the exact reason I purchased it. If you are going to spend the money to buy the latest and greatest video card then by all means don't skimp on the power. Tactile Cooling Control: The Manual Fan Override Knob is a game-changer. It’s located right on the back panel next to the power plug, so it's fully accessible from outside your case. You can leave it on Zero RPM mode for total silence during work or manually crank it up to 100% during a marathon gaming session to keep the internals chilled. It's so satisfying to know that the fan that is inside PSU is not only running but as fast as you want it to because you can dial it in to your needs. Premium Internals: It uses 100% Japanese 105°C-rated capacitors, which are the highest tier for longevity. It’s Cybenetics Gold certified for efficiency and holds an A- noise rating, so even when it is working hard, it stays whisper-quiet. Build-Friendly Cables: The cables are "embossed," making them much more flexible and easier to route through tight spaces than the old stiff, sleeved versions. The Pro Tip: Register this PSU on the Corsair site immediately. It comes with a 10-year warranty. Corsair’s support is top-tier, and with a decade of coverage, this is likely the last PSU you’ll need to buy for the next several builds.
...
show more
Reviewed in the United States on December 18, 2025 by Jerry (Zell) Curry II
Style: RMx (2024) - ATX 3.1
Size: 1000W
Works good and easy once you figure out what the cords mean, they could do better with labeling but other than that no complaints
Reviewed in the United States on August 27, 2026 by AJ