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Black Corsair RM850x power supply unit with 850 W, 24-pin ATX, and vented grille design.

Corsair RM850x 850W Fully Modular Power Supply Unit

by Corsair

£137.92from 3 retailers

The Corsair RM850x is an 850W fully modular power supply unit designed for optimal performance and quiet operation, perfect for your next computer build.

GTIN00840006667544
EAN0840006667544
MPNCP-9020270-UK
Prices updated 7 Jun 2026

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Product Description

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.. Power. Power protection features. Over current, Over power, Over voltage, Overheating, Short circuit. 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. 10 - 5 A. AC input frequency. 47 - 63 Hz. AC input voltage. 100 - 240 V. Total power. 850 W. Ports & interfaces. Cabling type. Fully-Modular. PCI Express power connectors (12+4 pin). 1. PCI Express power connectors (6+2 pin). 3. EPS power connector (4+4 pin). Yes. EPS power connector (8-pin). No. Peripheral (Molex) power connectors (4-pin). 2. Number of PATA power connectors. 3. Number of SATA power connectors. 8. Motherboard power cable length. 61 cm. Motherboard power connector. 24-pin ATX. Performance. Silent mode. Yes. ATX version. 3.1. 80 PLUS certification. 80 PLUS Gold. Power supply unit (PSU) form factor. ATX. Purpose. PC/Server. Design. Illumination. No. Number of fans. 1 fan(s). Cooling type. Active. Product colour. Black. Packaging content. Cable tie(s) included. Yes. Cables included. AC. Certificates. Compliance certificates. Low Voltage Directive (LVD), RoHS, UKCA. Weight & dimensions. Weight. 3.28 kg. Height. 86 mm. Depth. 160 mm. Width. 150 mm

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