Best Power Supplies Deals Online in the UK (10 Deals Found)

Last Updated - 01/04/2026 Sort By:

Best Choice
Corsair

New
CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybene
Fully Modular PSU: Reliable and efficient, low-noise power supply with fully modular cabling, so you only have to connec

£89.96 £114.99
Best Value
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

£109.99 £147.99
Corsair

Used
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

£89.99
15% Off
Corsair

New
CORSAIR RM1000x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Effici
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the

£152.49 £179.99
Corsair

Used
CORSAIR RM1000x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Effici
Fully Modular: Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the

£123.45
11% Off
Corsair

New
CORSAIR CX750 80 PLUS Bronze Non Modular Low-Noise ATX 750 Watt Power Supply - UK - Black
80 PLUS Bronze Certified: Provides up to 88% operational efficiency, generating less heat and lowering your energy costs

£57.89 £64.99
Corsair

Used
CORSAIR CX750 80 PLUS Bronze Non Modular Low-Noise ATX 750 Watt Power Supply - UK - Black
80 PLUS Bronze Certified: Provides up to 88% operational efficiency, generating less heat and lowering your energy costs

£51.65
MSI

New
MSI MAG A650BN Gaming Power Supply Unit: 80 PLUS BRONZE, 650 Watt, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan, 5-Year
80 PLUS BRONZE CERTIFIED - An efficient power supply reduces system energy consumption & thermal loading; An 80 PLUS Bro

£44.99
MSI

Used
MSI MAG A650BN Gaming Power Supply Unit: 80 PLUS BRONZE, 650 Watt, 12V Single-Rail, DC-to-DC Circuit, 120mm Fan, 5-Year
80 PLUS BRONZE CERTIFIED - An efficient power supply reduces system energy consumption & thermal loading; An 80 PLUS Bro

£40.41
31% Off
MSI

New
MSI MAG A850GL PCIE5 Power Supply Unit, 850W, 80 Plus Gold, Fully Modular, ATX 3.0, PCIe 5.0 GPU Support, Black Flat Cab
80 PLUS GOLD CERTIFIED – An efficient power supply reduces energy consumption and heat load of the system. 80 PLUS Gold

£89.99 £129.99

10 Power Supplies deals are available from: Amazon stores, starting from £40.41.
The biggest discount we found is 31% on MSI MAG A850GL PCIE5 Power Supply Unit, 850W, 80 Plus Gold, Fully Modular, ATX 3.0, PCIe 5.0 GPU Support, Black Flat Cables, 7 Year Warranty at Amazon.
The lowest price we found is £40.41 while the highest is £152.49.
Prices for the best Power Supplies deals average at £85.08.
Last updated on April 1, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Supplies.