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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

Name: Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.1 & PCIe 5.1 Compatible - Zero RPM - Modular Side-Mounted Connector
Brand: Unbranded
SKU: B0BP8BJ7X4
Price: 85.50 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$85.50

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View Current Price on Amazon → Compare to similar power supplies

*Price sourced from Amazon.com. Last updated 2026-04-20. 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. Compare close alternatives 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…

SpecPicks Verdict

SpecPicks scored Corsair RM850x Shift Fully Modular ATX Power Supply - 80 Plus Gold… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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

Brand	Corsair
Color	Black
Wattage	850 watts
Model Name	RM850x SHIFT
Unit Count	1.0 Count
Form Factor	ATX
Model Number	CP-9020252-NA
Connector Type	ATX, EPS
Cooling Method	Air
Item Type Name	Power Supplies
Number of Fans	1
Output Wattage	850.0
Item Dimensions	6.3 x 5.91 x 5.08 inches
Mfr Part Number	CP-9020252-NA
Compatible Devices	Personal Computer
Connector Quantity	59
Power Supply Design	Full Modular
Warranty Description	10 year manufacturer
Maximum Input Voltage	240 Volts (AC)
Minimum Input Voltage	100 Volts (AC)

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 2026-04-20. Price and availability subject to change.