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Corsair

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black

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Availability: Only 5 left in stock, order soon!
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Arrives Saturday, Jul 18
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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: RM1000x


Brand: Corsair


Compatible Devices: Monitor


Connector Type: ATX


Output Wattage: 1000 Watts


Form Factor: ATX


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: ATX


Wattage: 1000 watts


Cooling Method: Air


Power Supply Design: Full Modular


Number of Fans: 1


Maximum Input Voltage: 120 Volts (AC)


Minimum Input Voltage: 120 Volts (AC)


System Bus Connector Type: ATX


Item Dimensions: 2.3 x 3.39 x 5.91 inches


Item Weight: 6.9 Pounds


Model Name: RM1000x


Brand: Corsair


Manufacturer: Corsair


UPC: 840440415190


Mfr Part Number: CP-9020271-NA/AM


Model Number: CP-9020271-NA/AM


Warranty Description: 10 Year Manufacturer


Unit Count: 1.0 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jul 18

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Top-tier internal components, Platinum-certified, Stable Top-tier internal components, Platinum-certified, Stable
Style: RMx (2024) - ATX 3.1 Size: 1000W
Review Image by Yulian Orlov
Review Image by Yulian Orlov
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 ... show more
Reviewed in the United States on February 23, 2026 Reviewed in the United States on February 23, 2026 by Yulian Orlov
    • With great power comes great peformance
Style: RMx (2024) - ATX 3.1 Size: 1000W
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. ... show more
Reviewed in the United States on May 3, 2026 by Scott H.
    • Nice cables and low noise
Style: RMx (2024) - ATX 3.1 Size: 1000W
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. ... show more
Reviewed in the United States on April 29, 2026 by arron b.
    • Good PSU for the price and reliable
Style: RMx (2024) - ATX 3.1 Size: 1000W
Quality is very good, size is fit in every case I think. Control of the fans and good modular psu.
Reviewed in the United States on April 6, 2026 by Yervand M.
    • Good stuff
Style: RMx (2024) - ATX 3.1 Size: 1000W
Quaility power supply. Powers up my high end gaming pc with no issues.
Reviewed in the United States on May 12, 2026 by JC
    • 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.
Reviewed in the United States on May 18, 2026 by Chris Tingle
    • great psu
Style: RMx (2024) - ATX 3.1 Size: 1000W
great psu love the expansive pcie ports and headroom for future upgrades . favorite part is the manual fan control on the back nice touch
Reviewed in the United States on May 25, 2026 by Samantha Pagan
    • Clean power, no issues
Style: RMx (2024) - ATX 3.1 Size: 1000W
Great power supply. Had all the right connectors for a new z890 motherboard and 5080 GPU.
Reviewed in the United States on May 17, 2026 by DIY Guy

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