Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black | Back to the Office

Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black

Corsair RM850x power supply unit 850 W 24-pin ATX ATX Black

Corsair

iFrame

£146.99

Stock Available: 436

Product Information

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.

Product Specifications

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

Certificates
Compliance certificates	Low Voltage Directive (LVD), RoHS, UKCA

Packaging content
Cable tie(s) included	Yes
Cables included	AC

Weight & dimensions
Weight	3.28 kg
Height	86 mm
Depth	160 mm
Width	150 mm

Manuals & Downloads

Customer Reviews

Contact Us

Head Office:
71-75 Shelton Street, Covent Garden, London, United Kingdom, WC2H 9JQ

Email: hello@backtotheoffice.co.uk

Please spend responsibly. Borrowing more than you can afford could seriously affect your financial status. Make sure you can afford to make your monthly repayments on time.

Please note that the following products are not regulated by the FCA: Pay in 3 instalments. Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply.

PayPal Credit and PayPal Pay in 3 are trading names of PayPal UK Ltd. Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH

Klarna Bank AB (publ) is authorised and regulated by the Swedish Financial Supervisory Authority. Deemed authorised by the Prudential Regulation Authority. Subject to regulation by the FCA.

© 2025 Back to the Office Limited, part of the BackTo Group. | Registered in England and Wales: 13983827. VAT: GB428009508.