How stable is the Corsair RM1200e 1200W PSU?

The Corsair RM1200e 1200W PSU is noted for its steady and reliable power output, as it features 105°C-rated capacitors and resonant LLC topology with DC-to-DC conversion for consistent power delivery.

Does this PSU fit in an ATX case?

Yes, the product has a compact 150mm casing that fits easily into any power supply compartment, making it suitable for an ATX case.

I have a PowerColor Red Devil 7900XTX. Does this power supply come with 3 PCI-E cables?

It comes with 4 total. 2 of them are single PCIe and 2 of them are single-to-dual.

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Main image of CORSAIR RMe Series RM1200e ATX Power Supply – Fully Modular – ATX 3.1 – 80 PLUS Gold – Cybenetics Platinum – Low-Noise – 1200 Watts – Ten-Year Warranty

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CORSAIR RMe Series RM1200e ATX Power Supply – Fully Modular – ATX 3.1 – 80 PLUS Gold – Cybenetics Platinum – Low-Noise – 1200 Watts – Ten-Year Warranty

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Options: RMe Series (1200W) Black

750W (White)
RMe Series (1200W) Black
2025 RMe Series (850W)- Black
2025 RMe Series (1000W)- Black
2025 RMe Series (750W)- Black
2025 RMe Series (650W)- Black
2025 RMe Series (750W)- White
2025 RMe Series (1000W)- White
2025 RMe Series (850W)- White

Fully modular
ATX 3.1 Compliant
Supports PCIe Gen 5
Low-noise 120mm rifle bearing fan
105°C-rated capacitors
100% Japanese electrolytic capacitors
Modern standby compatible
80 PLUS Gold-certified
Zero RPM fan mode
Compact 150mm casing
Resonant LLC topology with DC-to-DC conversion
Ten-year warranty

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

Specs

Reviews (1,271)

Best Seller Ranking	#12 in Power Supplies

General
Brand	CORSAIR
Series	RMe
Model	CORSAIR RM1200e
Part Number	CP-9020258-NA

Details
Type	ATX 3.0 Compatible / ATX 3.1 Compatible
Maximum Power	1200 W
Fans	1 x 120 mm rifle bearing fan
Max PSU Length	150 mm
Modular	Full Modular
Energy-Efficient	80 PLUS GOLD Certified
Input Voltage	100V a.c.-240V a.c 200V a.c.-240V a.c.(Only For China & India)
Input Frequency Range	47 - 63 Hz
Input Current	15A-7.5A
Output	+3.3V@20A, +5V@20A, +12V@100A, +5VSB@3A
Connectors	1 x Modular ATX Cable (24-PIN) (24) 2 x Modular EPS/ATX12V Cable (8-PIN) (4+4) 2 x Modular PCIe Cable (8-PIN) (6+2) 1 x Modular PCIe 5.0 (16-PIN) (12+4) 2 x Modular PCIe Cable (8-PIN) (6+2)/(6+2) 1 x Modular SATA Cable (3 SATA)(straight) 1 x Modular SATA Cable (4 SATA)(right angle) 1 x Modular PATA Cable (4 PATA)

Features
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 3.0 Compliant: Compliant with the ATX 3.0 power standard from Intel®, supporting the PCIe Gen 5 platform and resisting transient power spikes. 105°C-Rated Capacitors: Delivers steady, reliable power and dependable electrical performance, with 100% Japanese electrolytic capacitors. Keeps Quiet: A 120mm 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. 80 PLUS Gold-Certified: Steady power output at up to 90% efficiency, and Cybenetics Platinum certified for lower power consumption, less noise, and cooler temperatures. Zero RPM Fan Mode: For near-silent operation at lower loads. Resonant LLC Topology with DC-to-DC Conversion: Provides clean, consistent power and enables use of more energy-efficient sleep states. Ten-Year Warranty: Your guarantee of reliable operation for peace of mind through multiple builds. The Right Fit: A compact 140mm casing fits easily into any power supply compartment and offers more space for cables.

Dimension & Weight
Dimensions	5.91"5.91"3.39"
Weight	4 lbs

Package
Package Content	RM1200e ATX Power Supply \| Power cord \| DC Cables \| Mounting screws \| Cable ties

Additional Information
First Listed on Newegg	September 05, 2023

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 10 years
Limited Warranty period (labor): 10 years
Read full details

Return Policies

We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2025 and December 31, 2025 you will have until January 31, 2026 to return your product.

Return for refund until: January 31, 2026

Return for replacement until: January 31, 2026

This item is covered by Newegg.com's Extended Holiday Return Policy. Read full return policy for details.

Sponsored Products

CORSAIR RMe Series RM1200e ATX Power Supply – Fully Modular – ATX 3.1 – 80 PLUS Gold – Cybenetics Platinum – Low-Noise – 1200 Watts – Ten-Year Warranty

Learn more about the Corsair CORSAIR RM1200e

Customer Reviews of the Corsair CORSAIR RM1200e

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16817139315

Sponsored Products

CORSAIR RMe Series RM1200e ATX Power Supply – Fully Modular – ATX 3.1 – 80 PLUS Gold – Cybenetics Platinum – Low-Noise – 1200 Watts – Ten-Year Warranty

Learn more about the Corsair CORSAIR RM1200e

Customer Reviews of the Corsair CORSAIR RM1200e

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info