Introduction
Corsair has held a dominant position in the PC power supply market, with its RM and RMx series being solid choices for system builders ranging from everyday gamers to high-end enthusiasts. While the premium RM line targets silent performance and top-tier component selections, the "e" in Corsair's RMe lineup aims to bring a high-wattage unit with modern feature sets to a more competitive price point. Now in its latest generation, the RMe family continues to evolve alongside the shifting power demands of modern desktop hardware, offering streamlined designs without stripping away essential safety protections or output.
Today we are looking at the highest power model in the new 2026 2nd generation RMe line, the RM1200e. It is rated for 1200 W output, and has a Cybenetics Platinum certification alongside full compliance with the ATX 3.1 and PCIe 5.1 standards. Despite its high power delivery, Corsair has squeezed the platform into a compact 150 mm deep chassis, leaving plenty of space for cable routing in tighter cases. The fan is a large 140 mm rifle-bearing fan supporting Zero RPM semi-passive operation and the PSU includes textured modular cables, and Corsair's PinProtect GPU over-current protection on its native 12V2X6 cable.
Specifications
Corsair RM1200e (2nd Generation)| Specifications |
|---|
| Model | RM1200e (2nd Gen) |
|---|
| Weight | 1.72 kg |
|---|
| AC Input | 100 V-240 V a.c |
|---|
| Frequency | 47 Hz–63 Hz |
|---|
| +5V | 20 A |
|---|
| +3.3 V | 20 A |
|---|
| +5 V & +3.3 V Combined | 150 W |
|---|
| +12V | 100 A |
|---|
| Power Factor | Active PFC |
|---|
| +5VSB | 3 A / 15 W |
|---|
| Maximum Power | 1200 W |
|---|
Corsair RM1200e (2nd Generation)| Features |
|---|
| ATX12V Version | ATX 3.1 |
|---|
| Efficiency | Cybenetics Platinum |
|---|
| Dimensions | 150 mm (L) x 150 mm (D) x 86 mm (H) |
|---|
| PFC | Active PFC |
|---|
| Fan | 140 mm Rifle Bearing (Zero RPM Mode) |
|---|
| Safety Features | PinProtect 12V2X6 OCP OVP (Over-Voltage Protection) OCP (Over-Current Protection) OTP (Over-Temperature Protection) SCP (Short-Circuit Protection) OPP (Over-Power Protection) NLO (No-Load Operation) SIP (Surge and Inrush Protection) |
|---|
| Warranty | 10 Years |
|---|
Packaging and Accessories
The box design is striking with the bright yellow accent running along the top, and the PSU front and center. There is a subtle patterned backdrop which mimics the shapes of the 3D fan grille.
On the rear we find a list of features and details, efficiency and fan curve graphs, and power distribution table.
With this being a price-conscious model, the packaging goes for function over form with moulded cardboard and a simple divider for the modular cables, without any storage bags. There are 4 mounting screws and a small bag of cable ties though.