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Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector Interface - Black

Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector Interface - Black

By SpecPicks Editorial · Verified 2026-07-22

$85.50
Buy on Amazon — $85.50 Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

Bottom line: The Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector Interface - Black is a niche pick — read recent reviews before buying in the power supplies category, priced around $85.50. Read recent reviews carefully before committing.

CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within quick reach, for exceptionally convenient 80 PLUS Gold efficient power. With fully modular micro-fit connections and ATX 3.0 compliance, RMx SHIFT makes clean PC builds and upgrades even easier. RMx SHIFT PSUs use Japanese 105°C-rated electrolytic capacitors, for long life and reliability backed by a ten-year warranty. A 140mm fluid dynamic bearing fan utilizes a specially calculated fan curve for high performance and reliability with low noise, while Zero RPM…

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SpecPicks Verdict

SpecPicks classifies Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold… as a niche pick — read recent reviews before buying in the power supplies category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

  • ✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

  • ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
  • ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

  • Fully Modular Micro-Fit PSU Connectors: CORSAIR Type 5 Gen 1 micro-fit PSU cables mean you only connect the cables your system needs while taking up less space.
  • Zero RPM Fan Mode Support: At low and medium loads the cooling fan switches off entirely for near-silent operation.
  • 100% 105°C-Rated Japanese Electrolytic Capacitors: Premium internal components deliver unwavering power delivery and long-term reliability.
  • Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.

Full Specifications

BrandCorsair
ColorBlack
Wattage850 watts
Model NameRM850x SHIFT
Unit Count1.0 Count
Form FactorATX
Model NumberCP-9020252-NA
Connector TypeATX, EPS
Cooling MethodAir
Item Type NamePower Supplies
Number of Fans1
Output Wattage850.0
Item Dimensions6.3 x 5.91 x 5.08 inches
Mfr Part NumberCP-9020252-NA

Ready to buy?

Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector Interface - Black is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

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Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector Interface - Black
$85.50
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