CORSAIR RM1200e (2023) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable

Name: CORSAIR RM1200e (2023) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Platinum Efficiency
Brand: Unbranded
SKU: B0DXVPBJJ2

Status: CORSAIR RM1200e: Unavailable on Amazon as of 2026-10-07 04:16 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 RM1200e Fully Modular Low-Noise ATX Power Supply is a specs-and-price decision rather than a crowd-consensus one in the power supplies category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

Unavailable on Amazon as of 2026-10-07 04:16 UTC

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

Similar: MSI MAG A850GL PCIE5 — $109.99 on Amazon as of 2026-10-07 04:20 UTC (price may vary).

View Current Price — $109.99

Similar: CORSAIR RM750e ATX 3.1 PCIe 5.1 Ready 750W Power… — $85.48 on Amazon as of 2026-10-06 12:20 UTC (price may vary).

View Current Price — $85.48

Similar: CORSAIR RM1000e — $132.98 on Amazon as of 2026-10-07 04:20 UTC (price may vary).

View Current Price — $132.98

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

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-07

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 →

Before you buy

Confirm socket / form-factor / power-rating compatibility against your build before ordering
Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

The CORSAIR RM1200e Fully Modular Low-Noise Power Supply provides quiet, reliable power with 80 PLUS Gold efficiency to your PC. Compliant with the ATX 3.1 power standard from Intel®, RMe PSUs have the connections needed to power today’s demanding PC hardware. Industrial-grade, 105°C-rated 100% Japanese Electrolytic capacitors deliver superb electrical performance, backed by a ten-year warranty. Wake your computer faster and consume less power with support for the new Modern Standby sleep mode. Fully modular cables make PC builds easy, as you connect only the cables your system requires…

SpecPicks Verdict

SpecPicks scored CORSAIR RM1200e Fully Modular Low-Noise 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

Fully Modular PSU: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
ATX 3.1 Compliant: Compliant with the ATX 3.1 power standard from Intel, supporting the PCIe Gen 5 platform and resisting transient power spikes.
Keeps Quiet: A 140mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
Keeps Quiet: A 140mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
Modern Standby Compatible: Extremely fast wake-from-sleep times and better low-load efficiency.

Full Specifications

Brand	Corsair
Color	Black
Wattage	1200 watts
Model Name	CORSAIR RM1200e
Unit Count	1.0 Count
Form Factor	SFX12V
Keeps Quiet	A 140mm rifle bearing fan with a specially calculated fan curve keeps fan noise down, even when operating at full load.
Model Number	CP-9020258-NA
Built-In Media	Item
Connector Type	ATX
Cooling Method	Air
Number of Fans	1
Output Wattage	1200 Watts
Item Dimensions	5.91 x 5.91 x 3.39 inches
Mfr Part Number	CP-9020258-NA
ATX 3.1 Compliant	Compliant with the ATX 3.1 power standard from Intel, supporting the PCIe Gen 5 platform and resisting transient power spikes.
Fully Modular PSU	Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system build needs.
Compatible Devices	Monitor
Power Supply Design	Full Modular
Warranty Description	10 Year Manufacturer
Full listing title	CORSAIR RM1200e (2023) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Platinum Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black

Ready to buy?

Amazon shows no buyable offer for CORSAIR RM1200e at the last check. A similar in-stock product is MSI MAG A850GL PCIE5. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Similar — $109.99