Overview

  • 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-2×6 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.
  • Low Noise with 140mm Fan
    A 140mm FDB fan with a specially calculated fan curve ensures low-noise operation even at full load, with a fan speed adjustment knob on the back for quick manual control.
  • 100% Japanese Electrolytic Capacitors
    Delivers steady, reliable power and dependable electrical performance with 105°C-rated Japanese capacitors.
  • 50°C Maximum Operating Temperature
    For reliable power even under high-stress conditions.
  • Zero RPM Fan Mode
    For near-silent operation at lower loads.
  • Ten-Year Warranty
    Your guarantee of reliable operation for peace of mind through multiple builds.

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Specifications

Capacity & configuration

Cooling Fan Type
140mm Fluid Dynamic Bearing Fan
Lighting Type
None

Dimensions & weight

Product Name
RMX Series RM1000x Cybenetics Gold Fully Modular ATX Power Supply
Product Height
214 millimeters
Product Width
86 millimeters
Product Length
160 millimeters
Product Weight
110.08 ounces

Features

Brand
CORSAIR
Color
Black
Modular
Fully modular
Energy Efficiency
Cybenetics Gold
ATX Connector
ATX CABLE 24-PIN (24). 2x EPS/ATX12V CABLE 8-PIN (4+4)
Floppy Connector
FALSE
PCIe Connector
4x PCIe 8-PIN (6+2). 1x PCIe CABLE 12+4-PIN(12+4)
Peripheral Connector
6
SATA Connector
12x SATA Connectors
EPS12V Connector
2
PCI Express Version
PCI Express 5.0
Form Factor
ATX
Cord Length
5 feet
Cooling System
Air
Number of Fans Included
1
UPC
840006667698, 840006667506

Power & warranty

Wattage
1000 watts, 850 watts
Model Number
CP-9020271-NA
Power Cord Included
Yes
Warranty - Parts
10 years
Warranty - Labor
10 years

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
JUSTINKOct 25, 2026 · Verified purchase ★★★★★

CORSAIR-RM1000X-Cybenetics Gold Fully Modular ATX - Very nice quiet power supply came with plenty of wires to do my project case properly I like the variable speed fan control allows you to turn off the power supply fan until its temp sensors actually needed to come on very handy in a studio situation also it looks pretty darn good

HiwhatOct 23, 2026 · Verified purchase ★★★★★

Great psu - Needed it for my new 5060ti, works great in my corsair 5000x with my 12 fans

RockyOct 20, 2026 · Verified purchase ★★★★★

Best PSU on the Market - I bought this unit a few years ago to future proof my setup and it has been game changing. No more bogging down or yearning for more power. This item works great and is super quiet as well. I would definitely recommend this to anyone looking to upgrade their setup.

yosefOct 17, 2026 · Verified purchase ★★★★★

Good power supply - Clean build looks good in case adjustable fan is nice

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat