CORSAIR RM1200x Shift Fully Modular ATX Power Supply

Name: CORSAIR RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.0 - PCIe 5.0 - Zero RPM - Modular Side Interface - White
Brand: Unbranded
SKU: B0CWLV1635

Status: CORSAIR RM1200x Shift Fully Modular ATX Power…: Unavailable on Amazon as of 2026-10-05 04:31 UTC. SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.

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Bottom line: The CORSAIR RM1200x Shift Fully Modular ATX Power Supply: Side-mounted modular ports keep cable runs reachable in tight cases; main trade-off: type 5 Gen 1 micro-fit cables are not compatible with older Corsair PSU cable sets.

Unavailable on Amazon as of 2026-10-05 04:31 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:

Similar: Corsair RM1200x Shift Fully Modular ATX Power… — $119.98 on Amazon as of 2026-10-06 22:22 UTC (price may vary).

View Current Price — $119.98

Similar: Corsair RM1000x Shift Fully Modular ATX Power… — $112.99 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $112.99

Similar: Corsair RM1000e — $85.30 on Amazon as of 2026-10-06 10:23 UTC (price may vary).

View Current Price — $85.30

Original listing (currently unavailable) → Compare to similar power supplies

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-05

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ Side-mounted modular ports keep cable runs reachable in tight cases
✓ ATX 3.0 and PCIe 5.0 native support for current-gen GPU power connectors
✓ Japanese 105C electrolytic capacitors throughout, backed by a 10-year warranty
✓ Zero RPM mode silences the 140mm fluid dynamic bearing fan at low load
✓ 80 Plus Gold efficiency at 1200W leaves headroom for high-draw builds

Cons

✗ Type 5 Gen 1 micro-fit cables are not compatible with older Corsair PSU cable sets
✗ Side interface demands case clearance on the PSU shroud side, not the rear
✗ White finish limits color matching in all-black builds
✗ 1200W is overkill for mid-range single-GPU systems that draw far less

Manufacturer description

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 RM1200x Shift Fully Modular ATX Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Compare with similarly-priced alternatives in the power supplies category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

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

Brand	Corsair
Color	White
Wattage	1200 watts
Fan Size	14 centimeters
Model Name	RMx SHIFT
Unit Count	1 Count
Form Factor	ATX
Model Number	CP-9020276-NA
Connector Type	ATX
Cooling Method	Air
Number of Fans	1
Output Wattage	1200
Item Dimensions	6.3 x 5.91 x 3.39 inches
Mfr Part Number	CP-9020276-NA
Number of Items	1
Number of Packs	1
Compatible Devices	Monitor
Connector Quantity	25
Power Supply Design	Full Modular
Warranty Description	10 Year Manufacturer
Full listing title	CORSAIR RM1200x Shift Fully Modular ATX Power Supply - 80 Plus Gold - ATX 3.0 - PCIe 5.0 - Zero RPM - Modular Side Interface - White

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View Similar — $119.98