The Corsair RM1200e (CP-9020258-UK) is a fully modular 1200W ATX 3.1 power supply with 80 PLUS Gold efficiency, a single low-noise fan with Zero RPM mode, and a native 12V-2x6 connector for PCIe 5.1 graphics cards. It is built for high-end gaming and workstation systems that need powerful, reliable power.
Key Features
1200W continuous power with 80 PLUS Gold efficiency
ATX 3.1 certified with a 12V-2x6 (12+4 pin) cable for PCIe 5.1 graphics cards
Fully modular cabling for a clean, easy build
Low-noise fan with Zero RPM Fan Mode for silent operation at lower loads
Resonant LLC topology with DC-DC conversion for stable power delivery
100% industrial-grade, 105°C-rated Japanese electrolytic capacitors
Modern Standby support for fast wake times
10-year Corsair warranty
Full Specifications
General
Brand
Corsair
Series
RMe
Model
RM1200e
Part Number
CP-9020258-UK
Color
Black
Power & Efficiency
Wattage
1200W
Efficiency
80 PLUS Gold
ATX Version
ATX 3.1
Topology
Resonant LLC with DC-DC conversion
Capacitors
105°C Japanese electrolytic
Cooling
Fan
Single low-noise fan
Fan Mode
Zero RPM Fan Mode
Cables & Connectors
Modularity
Fully modular
ATX 24-pin
1x (610 mm)
EPS 8-pin (4+4)
2x (650 mm)
12V-2x6 (12+4 pin)
1x (650 mm)
PCIe 8-pin (6+2)
2x single and 2x dual connector cables
SATA
1x 3-connector and 1x 4-connector right-angle cable
PATA 4-pin
1x (750 mm)
Physical
Weight
3 kg
Warranty
10 years
Who Is It For?
Gamers and creators running high-end GPUs and CPUs
Builders who need a 12V-2x6 native PCIe 5.1 cable
Users who want a quiet, fully modular power supply
Workstation and multi-GPU builds that need 1200W of headroom
