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

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Best Seller Ranking	#31 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	July 03, 2026

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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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Item#: 9SIC7PTM0T4929

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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