Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black
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Overview
- Fully modular, Type-5 connectors
- Cybenetics Gold-certified
- ATX 3.1 compliant, supporting PCIe 5.1
- Zero RPM Fan Mode for near-silent operation at lower loads
Power your next build with a CORSAIR RMx Series fully modular PSU for quiet, Cybenetics Gold-certified efficient performance.
Specifications
Power
| Total power | 850 W |
|---|---|
| AC input voltage | 100 - 240 V |
| AC input frequency | 47 - 63 Hz |
| Input current | 10 - 5 A |
| Combined power (+3.3V) | 150 W |
| Combined power (+12V) | 849.6 W |
| Combined power (+5V) | 150 W |
| Combined power (+5Vsb) | 15 W |
| Max output current (+3.3V) | 20 A |
| Max output current (+12V) | 70.8 A |
| Max output current (+5V) | 20 A |
| Max output current (+5Vsb) | 3 A |
| Efficiency | 90% |
| Power protection features | Over current, Over power, Over voltage, Overheating, Short circuit |
Ports & interfaces
| Motherboard power connector | 24-pin ATX |
|---|---|
| Motherboard power cable length | 61 cm |
| Number of PATA power connectors | 3 |
| Number of SATA power connectors | 8 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| EPS power connector (8-pin) | No |
| EPS power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 3 |
| PCI Express power connectors (12+4 pin) | 1 |
| PCI Express connector | Yes |
| Cabling type | Fully-Modular |
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Performance
| Purpose | PC/Server |
|---|---|
| Power supply unit (PSU) form factor | ATX |
| 80 PLUS certification | 80 PLUS Gold |
| ATX version | 3.1 |
| Silent mode | Yes |
Design
| Product colour | Black |
|---|---|
| Cooling type | Active |
| Number of fans | 1 fan(s) |
| Illumination | No |
Packaging content
| Cables included | AC |
|---|---|
| Cable tie(s) included | Yes |
Certificates
| Compliance certificates | Low Voltage Directive (LVD), RoHS, UKCA |
|---|
Weight & dimensions
| Width | 150 mm |
|---|---|
| Depth | 160 mm |
| Height | 86 mm |
| Weight | 3.28 kg |
Other features
| Legal guarantee | 7 year(s) |
|---|
Manuals & downloads
Customer reviews
Delivery & returns
Delivery
- FREE standard delivery on orders over £50, otherwise £4.95 (3–5 working days).
- Express delivery £9.99 (1–3 working days) on selected products, UK mainland.
- PlayStation and Arozzi products use a 5–7 working-day service.
- Orders are processed within 24 hours, Monday to Friday excluding bank holidays. All deliveries must be signed for.
Returns
- Changed your mind? Tell us within 14 days of receiving your item, then return it within a further 14 days, unused and in its original packaging. A minimum £9.99 collection fee applies.
- Faulty or damaged on arrival? Contact us within 48 hours of delivery.
- Custom-built PCs can only be returned if faulty. Opened headphones, earphones and AirPods can't be returned for hygiene reasons.