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CORSAIR RMx Series (2021) RM850x 850 W Full Modular 80 PLUS GOLD Certified - ATX 3.0 80+ Gold (1200W)

CORSAIR RMx Series (2021) RM850x 850 W Full Modular 80 PLUS GOLD Certified – ATX 3.0 80+ Gold (1200W)

(0 customer reviews) SKU: 17-139-304
$209.99
In Stock

10 in stock

CORSAIR RMx Series (2021) RM850x is a high-efficiency 850W full modular ATX 3.0 power supply with 80 PLUS Gold certification, silent fan operation, and advanced protection features—ideal for gaming and high-performance PCs.

  • Tool-free installation with slide-and-lock design
  • USB 3.0 with 5Gbps transfer speed and UASP acceleration
  • Compatible with 7mm and 9.5mm 2.5" SATA HDD/SSD
  • Aluminum housing with effective heat dissipation
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SKU: 17-139-304

Description

The CORSAIR RMx Series (2021) RM850x 850W Full Modular Power Supply delivers reliable, high-efficiency power for your high-performance PC builds. With 80 PLUS Gold certification, this PSU ensures up to 90% energy efficiency under typical loads, reducing excess heat and energy costs. The ATX 3.0 compatibility makes it future-ready for the latest systems. Its full modular cabling allows for easy installation and a clean build, while the high-quality 135mm rifle bearing fan operates quietly with Zero RPM mode for silent performance at low to medium loads. Built with premium Japanese capacitors and comprehensive electrical protections (OCP, OVP, SCP, OPP, OTP, UVP), the RM850x is designed for long-term reliability and comes backed by a 10-year warranty. Ideal for gaming PCs, workstations, and power-hungry components.

Additional information

Series

RMx Series (2021)
Maximum Power Output

850W
Model

RM850x
Peak Power

1200W
Form Factor

ATX
Efficiency

Up to 90% (80 PLUS Gold Certified)
Modularity

Full Modular
Fan Type

135mm Rifle Bearing, Zero RPM Mode
Efficiency Certification

80 PLUS Gold
Input Voltage

100-240V
Wattage

850W
Protection Features

OCP, OVP, UVP, SCP, OPP, OTP
ATX Version

ATX 3.0
Dimensions

160mm x 150mm x 86mm
Color

Black
PCIe Connectors

4 x 6+2-pin
Intended Use

Desktop
SATA Connectors

10
Connector Type

Multiple (PCIe, SATA, Molex, CPU, Motherboard)
Molex Connectors

4
CPU Connectors

1 x 8-Pin (4+4)
Motherboard Connector

24-pin ATX
Warranty

10 years

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Frequently Asked Questions

  • This product comes with a standard 2-year manufacturer warranty that covers any defects in materials and workmanship.
  • Please check the detailed specifications to ensure compatibility with your system. If you're unsure, our customer support team can help you determine compatibility.
  • Yes, we offer professional installation services for an additional fee. Please contact our support team to arrange for installation.

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