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Rectangular ATX power supply unit in matte black finish with a 120 mm fan grille on one side

Corsair

Corsair RM1200e CP-9020258-NA 1200 W power supply

SKU CH-MN0M-8C35N MPN CP-9020258-NA

A 1200 W fully modular ATX 3.1 power supply with 80 PLUS Gold efficiency, a 120 mm rifle bearing fan, 105 °C Japanese capacitors and a native PCIe 5.0 connector

  • Max wattage1200 W
  • Modular cablingFull Modular
  • Fan configuration1 × 120 mm rifle bearing fan
  • PSU length limit150 mm
  • Efficiency certification80 PLUS GOLD Certified
  • Supply voltage100 V a.c.-240 V a.c 200 V a.c.-240 V a.c.(Only For China &

Model RMe Series (1200W) Black

  • Fully modular cabling keeps builds tidy by using only needed cables
  • 1200 W output with 80 PLUS Gold certification delivers efficient power
  • ATX 3.1 compliance and PCIe 5.0 connector support modern graphics cards
  • 120 mm rifle bearing fan and 105 °C capacitors enable quiet, reliable operation
  • 100 % Japanese electrolytic capacitors provide long-term durability

ATX 3.1 compliant 1200 W power supply

The Corsair RM1200e CP-9020258-NA is a fully modular ATX power supply rated at 1200 W. It carries 80 PLUS Gold certification and supports the ATX 3.0 and 3.1 power standards. A 120 mm rifle bearing fan provides cooling. The unit measures 150 mm in length.

Suits high-output builds needing ATX 3.1

This unit fits systems that require a 12 V 100 A rail and a 12VHPWR connector for modern graphics cards. Builds with lower total power draw or cases that cannot accommodate a 150 mm deep supply should consider a smaller model.

Single 12 V rail rated at 100 A

The +12 V rail delivers up to 100 A, which determines whether the supply can handle the combined load of CPU and graphics card. If your components demand more 12 V current than this rating, the unit will not be sufficient.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $169.99
Pricier than about 56% of the 10,869 comparable items (median $142.99).
Max wattage 1200 W
Higher than about 90% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameCORSAIR
Product lineRMe
Model nameCORSAIR RM1200e
Part numberCP-9020258-NA
Product typeATX 3.0 Compatible / ATX 3.1 Compatible
Ports & slots
Output type+3.3 V@20A, +5 V@20A, +12 V@100A, +5VSB@3A
Power
Max wattage1200 W
Modular cablingFull Modular
Efficiency certification80 PLUS GOLD Certified
Supply voltage100 V a.c.-240 V a.c
200 V a.c.-240 V a.c.(Only For China & India)
AC input frequency47–63 Hz
Rated input current15A-7.5A
Size & build
Product dimensions5.91 in*5.91 in*3.39 in
Product weight4 lb (1.81 kg)
Shipping weight3.40 kg
Package size305 × 191 × 127 mm
Compatibility
PSU length limit150 mm
In the box
Included itemsRM1200e ATX Power Supply | Power cord | DC Cables | Mounting screws | Cable ties
More details
Fan configuration1 × 120 mm rifle bearing fan

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 1200 W RMe unit or a lower-wattage model for my build?

Pick the 1200 W model when your GPU and CPU combined can draw near 100 A on the 12 V rail; a lower-wattage unit would limit that headroom.

What does the 1200 W rating mean once the PSU is installed in my PC?

It guarantees 1200 W total output with up to 100 A on the +12 V rail, 20 A each on +3.3 V and +5 V, and 3 A on +5 VSB, all while meeting 80 PLUS Gold efficiency.

How does the ATX 3.1 compliance and the 12+4 pin connector cap real-world GPU power?

The native 12+4 pin cable is rated for the full 12 V capability of the PSU, so a Gen 5 graphics card can draw its maximum board power through that single connection.

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