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. With a more compact 150mm casing, you get more room for your cables to fit comfortably in any power supply compartment.
Q: Is this power supply fully modular?
A: Yes, the CORSAIR RM1200e is a fully modular power supply.
Q: How much power can this PSU deliver?
A: The RM1200e power supply can deliver 1200 watts of power.
Q: Does the fan always run in this power supply?
A: No, the fan has a Zero RPM Fan Mode for near-silent operation at lower loads.
Q: What is the efficiency rating of this power supply?
A: The CORSAIR RM1200e is 80 PLUS Gold-Certified for up to 90% efficiency and also Cybenetics Platinum certified.
Q: What is the warranty period for this power supply?
A: This power supply comes with a 10-year warranty for both parts and labor.
Q: Does this PSU support Modern Standby?
A: Yes, the RM1200e is compatible with the Modern Standby sleep mode for faster wake times and better low-load efficiency.
Q: What kind of fan does this PSU use?
A: It uses a 140mm rifle bearing fan with a specially calculated fan curve to minimize noise.
Q: Does this connect to the rtx 5090 gpu
A: undefined

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. With a more compact 150mm casing, you get more room for your cables to fit comfortably in any power supply compartment.

Toughpower GF A3 series is 80 PLUS Gold certified and compatible with Intel’s ATX 3.0 specifications. Designed with a native PCIe Gen 5.0 connector, it can power up next-gen technology with one new 12VHPWR cable.

CORSAIR RMx Series Fully Modular Low-Noise Power Supplies deliver quiet, dependable power with Cybenetics Gold efficiency to your PC. Fully modular, ultra-flexible embossed cables make PC builds easy, as you connect only the cables your system requires. Compliant with the ATX 3.1 power standard from Intel, RMx PSUs have the connections needed to power today’s demanding PC hardware including a native 12V-2x6 connector. 100% Japanese 105°C-rated electrolytic capacitors deliver fantastic electrical performance, while a 140mm FDB fan provides low noise cooling. Backed by a ten-year warranty, RMx PSUs are the gold standard for many years to come.

CORSAIR HX1200i Fully Modular Ultra-Low Noise Power Supplies deliver exceptional 80 PLUS Platinum efficient power and low-noise fluid dynamic bearing fan performance. ATX 3.1 and PCIe 5.1 compliance, HXi PSUs have every connection needed to power today’s most demanding PC upgrades. Powerful CORSAIR iCUE software enables custom fan curves, monitoring and adjusting power settings, and more thanks to a fully digital platform. Japanese 105°C-rated electrolytic capacitors deliver long life and reliability, backed by a ten year warranty. Wake your computer faster and consume less power with Modern Standby sleep mode. Zero RPM mode ensures near-silent operation at low and medium loads. The HX1200i puts platinum power at your command.
| Pros for CORSAIR - RMe Series RM1200e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.0 Power Supply - Black | |||
|---|---|---|---|
| Overall Performance, Noise Level, Power Supply, Ease of Use | Power Capacity, Noise Level, Overall Performance, Cable Management, Installation Ease | Overall Performance, Power Capacity, Noise Level, Cable Management, Fan Control | There were no pros for this product— |
| Cons for CORSAIR - RMe Series RM1200e 80 PLUS Gold Fully Modular Low-Noise ATX 3.1 and PCIE 5.0 Power Supply - Black | |||
| There were no cons for this product— | There were no cons for this product— | Coil Whine | There were no cons for this product— |
Customers frequently mention the excellent overall performance of the RMe Series RM1200e power supply, citing its flawless operation and compatibility with high-end components like the 4090 and 50 series graphics cards. Its ample power capacity is also a highlight, with users confirming its ability to effortlessly power their high-performance systems. No significant drawbacks were reported by customers. The power supply is praised for its reliable functionality and ability to meet the demands of modern, power-hungry hardware.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
I’m loving this power supply, stays cool, has no coil winding and powers everything perfectly
Posted by TreverM
This PSU was exactly what I needed for my small form factor build. It’s quiet, runs cool, and has enough power for my high-performance components. The fully modular design made cable management a breeze, and installation was straightforward. Been running it for a couple of months with no issues at all. Would definitely buy again and recommend to others!
Posted by SusannaD
Worked great out of the box. No issues, easy to set up and powered everything I needed it to. Plus I got it on sale!
Posted by MitchM