Best Corsair Rm850x 80 Plus Deals Online in the UK (10 Deals Found)

Last Updated - 19/09/2026 Sort By:

Best Choice
Corsair

New
CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficie
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the

£99.99 £123.80
Corsair

New
Corsair RM850x SHIFT Fully Modular ATX Power Supply - 80 PLUS Gold - ATX 3.1 - PCIe 5.1 - Zero RPM - Modular Side Interf
Fully Modular Micro-Fit PSU Connectors: CORSAIR Type 5 Gen 1 micro-fit PSU cables mean you only connect the cables your

£136.67
Corsair

New
Corsair RM850e (2023) Fully Modular Low-Noise ATX Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors -
Fully Modular PSU: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect

£113.00
Corsair

Used
Corsair RM850x unité d'alimentation d'énergie 850 W 24-pin ATX ATX Noir
Fully modular: connect only the most necessary cables to keep your system tidy and tidy.

£119.35
Best Value
Corsair

New
Corsair RM850x Shift Fully Modular ATX Power Supply – Modular Side Interface – ATX 3.0 & PCIe 5.0 Compliant – Zero RPM F

£188.54
Corsair

New
CORSAIR RM850x SHIFT (2025) Fully Modular ATX Power Supply – Modular Side Interface, Native 12V-2x6 Cable, ATX 3.1 & PCI
Innovative Easy-Access Connection Position: Modular connections on the side of the PSU mean easier access for your cable

£139.99
37% Off
MSI

New
MSI MPG A850GS PCIE5 Power Supply Unit, 850W, 80 Plus Gold, ATX 3.1, PCIe 5.1 50 Series GPU Support, Native 12V-2x6 Cabl
80 PLUS GOLD CERTIFIED –With 80 PLUS Gold certification (up to 90% efficiency), this PSU is ideal for powering hardware

£94.99 £149.99
Corsair

New
850W Corsair RMx Series RM850x | 80+ Gold Kabelmanagement
Corsair RM850x power supply unit 850 W ATX Black

£325.88
Corsair

New
CORSAIR RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply
80 PLUS Gold certified: High efficiency operation for less excess heat and lower operating costs

£351.59
GAMEMAX

New
GameMax GP-Series 850W 80 Plus Bronze Power Supply - 850W GameMax GP-Series GP-850, Fully Wired, Single Rail, 140mm Fan,
80 Plus Certification - The GameMax GP-Series is 80 PLUS Bronze certified for high efficiency delivering up to 85 percen

£49.99

10 Corsair Rm850x 80 Plus deals are available from: Amazon stores, starting from £49.99.
The biggest discount we found is 37% on MSI MPG A850GS PCIE5 Power Supply Unit, 850W, 80 Plus Gold, ATX 3.1, PCIe 5.1 50 Series GPU Support, Native 12V-2x6 Cables with Dual-Colour Connectors, ATX PSU, Embossed Jacket at Amazon.
The lowest price we found is £49.99 while the highest is £351.59.
Prices for the best Corsair Rm850x 80 Plus deals average at £162.00.
Last updated on September 19, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Corsair Rm850x 80 Plus.