Tired of cramped cable routing and noisy power units that throttle your builds? The Corsair RM850x SHIFT, 850 W, 100 - 240 V, 47 - 63 Hz, 10A-5A, Power Supply is a fully modular power supply that lets you organise cables from the side, stay cool and quiet, and power the latest high-end GPUs without worry.
Corsair Power Supply
Usages of a 850 W Power Supply
Ideal for high-performance gaming rigs, content-creation workstations and enthusiast builds that demand stable power for multiple GPUs, fast CPUs and plenty of storage. Its side-mounted connectors make cable management in tight cases simple, while the ATX 3.0 certification ensures compatibility with the newest components.
Benefits of Corsair Power Supply
You get reliable power delivery that protects expensive parts, silent operation thanks to a 140 mm fan with Zero RPM mode, and up to 90 % efficiency that lowers electricity costs. The fully modular design reduces clutter inside your case, and the ATX 3.0 certification guarantees future-proof compatibility. High-temperature Japanese capacitors give long-term stability, and Corsair’s world-class support means help is always at hand.
Key Features of a 850 W Power Supply
- Efficiency: 90 %. Keeps power loss low and your system cooler.
- Total power: 850 W. Provides ample headroom for demanding builds.
- ATX version: 3.0. Meets the latest industry standards for reliability.
- 80 PLUS certification: Gold. Guarantees high energy efficiency.
- Fan diameter: 14 cm. Large fan moves air efficiently while staying quiet.
- Fan technology: Fluid Dynamic Bearing. Reduces noise and extends fan life.
- Zero RPM mode: Yes. Fan stops completely under low load for silent operation.
- Capacitors: 105 °C-rated Japanese. Ensures stable performance under heat.
- Modular cabling: Fully-Modular. Lets you use only the cables you need.
- PCIe 5.0 12VHPWR cable: Included. Ready for the latest RTX 40-series graphics cards.
Specifications
| Power |
| Efficiency |
90% |
| Max output current (+5Vsb) |
3 A |
| Max output current (+5V) |
20 A |
| Max output current (+12V) |
70.8 A |
| Max output current (+3.3V) |
20 A |
| Combined power (+5Vsb) |
15 W |
| Combined power (+5V) |
150 W |
| Combined power (+12V) |
849.6 W |
| Combined power (+3.3V) |
150 W |
| Input current |
10A-5A |
| AC input frequency |
47 - 63 Hz |
| AC input voltage |
100 - 240 V |
| Total power |
850 W |
| Ports & interfaces |
| Cabling type |
Fully-Modular |
| PCI Express connector |
Yes |
| ATX power connector (20+4 pin) |
Yes |
| ATX Power connector (24-pin) |
Yes |
| CPU power cable length |
65 cm |
| CPU power connector (4+4 pin) |
Yes |
| PCI Express power connectors (6+2 pin) |
4 |
| EPS power connector (4+4 pin) |
Yes |
| SATA power cable length |
115,455 mm |
| Number of PATA power connectors |
8 |
| Number of SATA power connectors |
12 |
| Motherboard power cable length |
61 cm |
| Motherboard power connector |
24-pin ATX |
| Performance |
| Mean time between failures (MTBF) |
100000 h |
| Bearing technology |
FDB |
| Silent mode |
Yes |
| EPS version |
2.92 |
| ATX version |
3.0 |
| 80 PLUS certification |
80 PLUS Gold |
| Power supply unit (PSU) form factor |
ATX |
| Purpose |
PC |
| Design |
| On/off switch |
Yes |
| Illumination |
No |
| Fan location |
Rear |
| Number of fans |
1 fan(s) |
| Fan diameter |
14 cm |
| Cooling type |
Active |
| Product colour |
Black |
| Packaging content |
| Cables included |
CPU, PATA, SATA |
| Weight & dimensions |
| Weight |
1.7 kg |
