Corsair RMx Series RM850x, 850 Watt 80 PLUS Gold Fully Modular ATX PSU
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Corsair RMx Series RM850x, 850 Watt 80 PLUS Gold Fully Modular ATX PSU

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Corsair RMx Series RM850x, 850 Watt 80 PLUS Gold Fully Modular ATX PSUCorsair RMx Series RM850x 850 Watt 80 PLUS Gold Fully Modular ATX PSU
Count Per Pack1-Out of stock

Key item features

  • High Efficiency: With upwards of 90% peak efficiency, the Corsair RM850x produces less noise and heat, ensuring optimal performance and longevity.
  • Powerful Output: Delivers 850 Watts of power with multiple output voltages including 3.3V DC @ 25A, 5V DC @ 25A, 12V DC @ 70.8A, -12V DC @ 0.3A, and 5V @ 3A.
  • Magnetic Levitation Fan: Features a 135mm magnetic levitation bearing fan for high performance, low noise, and superior reliability.
  • Fully Modular: Completely modular cables allow you to connect only the cables your system needs, enhancing compatibility and reducing clutter.
  • Zero RPM Mode: The cooling fan switches off entirely at low and medium loads for near-silent operation, activating only when necessary to maintain optimal temperatures.
  • Advanced Technology: Incorporates robust resonant LLC topology with DC-DC conversion and 105C rated 100% Japanese electrolytic capacitors for consistent, reliable power.
  • Modern Standby Support: Supports Microsoft Modern Standby for extremely fast wake-from-sleep times and better low-load efficiency.
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Current price is $139.89
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Showing 1-3 of 5 reviews

Aug 13, 2025
Brooks
Item details
Count per pack: 1
Sold and shipped bySoutheast Wholesale
5 out of 5 stars review

Verified Purchase

I highly encourage going with this specific model of the 850W series as the Japanese capacitors will last way longer and are of much higher quality. Absolutely no issues from it.

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Helpful?4WEWN1RG4FIT812505500
Mar 9, 2025
anonymous
Item details
Count per pack: 1
Sold and shipped byNewegg Inc.
5 out of 5 stars review

Verified Purchase

Works good

Using it in my Unraid server running about 8 drives.

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Helpful?4WEWN1RG4FIT812505500
May 13, 2025
Tristan
Walmart Associate
Item details
Count per pack: 1
Sold and shipped byNewegg Inc.
5 out of 5 stars review

Verified Purchase

Corsair RM850X power supply.

It has plenty of power for all the cables you need and it's very quiet.

Incentivized Review
Helpful?4WEWN1RG4FIT812505500