CORSAIR RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.0 - PCIe 5.0 - Zero RPM - Modular Side Interface - White
Corsair

RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.0 - PCIe 5.0 - Zero RPM - Modular Side Interface - White

$269.99 ★★★★☆4.3(114 reviews)

*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.

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 classifies CORSAIR RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold… as a solid pick with broad community endorsement in the power supplies category, based on 114 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Corsair's positioning sits within the broader category mid-tier. 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

  • ✓ Solid 4.3★ customer rating
  • ✓ Backed by Corsair's warranty and support channels
  • ✓ 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

  • Innovative Easy-Access Connection Position: Modular connections on the side of the PSU mean easier access for your cables and simpler, cleaner cable management.
  • 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.
  • 140mm Fluid Dynamic Bearing Fan: Utilises a specially calculated fan curve for high performance, low noise, and superior reliability.
  • 100% 105°C-Rated Japanese Electrolytic Capacitors: Premium internal components deliver unwavering power delivery and long-term reliability.

Full Specifications

BrandCorsair
ColorWhite
Wattage1200 watts
Fan Size140 Millimeters
Model NameRMx SHIFT
Unit Count1.0 Count
Form FactorATX
Model NumberCP-9020276-NA
Connector TypeATX
Cooling MethodAir
Current Rating15 Amps
Number of Fans1
Output Wattage1200
Item Dimensions6.3 x 5.91 x 3.39 inches

Ready to buy?

CORSAIR RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.0 - PCIe 5.0 - Zero RPM - Modular Side Interface - White 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.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-05-23. Price and availability subject to change.

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