Best Power Supplies Deals Online in the UK (24 Deals Found)

Last Updated - 05/10/2026 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

£89.99 £114.99
Best Value
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

£129.95 £179.99
New
Pc Computer Power Supply FSP350
The FSP350 PC Computer Power Supply is a reliable and efficient component for powering your computer system.

£10.99
23% 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

£99.98 £129.99
New
500W ATX Power Supply PSU 24-Pin SATA Molex Desktop PC PSU
✔ Molex Power Connectors.

£12.00
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
18% Off
MSI

New
MSI MAG A650GL Power Supply Unit, 650W, 80 Plus Gold, Multiple Generations GPU Support, Fully Modular,120mm FDB Fan, Bla
80 PLUS GOLD CERTIFIED - An efficient power supply reduces energy consumption and heat load of the system. 80 PLUS Gold

£65.54 £79.99
New
Ecopac Power RCP-2000-48 Mean Well Power Supply 48V Brand New
The Ecopac Power RCP-2000-48 is a brand new power supply unit by Mean Well, designed to provide a stable 48V output for

£156.70
MSI

New
MSI MAG A850GLS PCIE5 Power Supply Unit, 850W, 80 PLUS Gold, ATX 3.1, PCIe 5.1 GPU Support, Native 12V-2x6, Dual-color 1
80 PLUS GOLD CERTIFIED- With 80 PLUS Gold certification (up to 90% efficiency), this PSU is ideal for powering hardware

£89.99
New
CDVI PSU12-2SM 12V DC 2A PSU UPS Switching Power Supply Unit in Metal Case

£15.00
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

£58.99
be quiet!

New
be quiet! Pure Power 13 M 1000W Power Supply, 80+ Gold, Cybenetics Platinum
Pure Power 13 M 1000W is certified 80 PLUS Gold with an outstanding efficiency rating of up to 94.4%. The most compellin

£129.99
New
EVGA 650W Modular Power Supply
The EVGA 210-GQ-0650-V3 650 GQ 650W Modular Power Supply is a high-quality power supply unit designed for computers.

£54.78
MSI

New
MSI MAG A600DN ATX PC Power Supply 600 Watt Non-Modular 80 Plus Black
MSI MAG A600DN ATX PC Power Supply (600 Watt, Non-Modular, 80 Plus, Black)

£34.95
New
XP Power RCL175-PQ46 Series Switching Enclosed Power Supply 175w
Key Features & Output Flexibility.

£29.99
Corsair

New
CORSAIR RM650e (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

£74.90
New
LUX 550w - Aero Cool Power Supply - 80 Bronze

£38.99
New
EDAC Power Adapter AC 240V~ 2.0A 50-60Hz
The EDAC Power Adapter is a reliable and efficient power supply unit designed for use with AC 240V to 2.0A 50-60Hz elect

£5.45
New
Mean Well XLG-240-M-AB Power Supply LED Driver 240W 700-2100mA 90-171V
Brand new Mean Well , never been used.

£39.17
New
ADJUSTABLE DC POWER SUPPLY 30V 10A VARIABLE SWITCHING LAB BENCH PRECISION
Mode: Switching power.

£42.99
New
Mean Well SP-750-24 Power Supply 31.3A
Brand new in the box.

£69.99
New
Adjustable Power Supply 0-30V 5A/10A DC Variable Bench Switching Laboratory Tool
Output current：0~5A.

£42.99
New
MEAN WELL SD-350C-24 350W 24V 14.6A DC-DC Enclosed PSU Adjustable Output
MEAN WELL SD-350C-24 350W 24V 14.6A DC-DC Enclosed PSU Adjustable Output

£16.15
New
Mean Well HDR-30-24 Power Supply 21.6 - 29v DC Output
Mean Well power supply 100 - 240vac input .

£8.66

24 Power Supplies deals are available from: Amazon, eBay stores, starting from £5.45.
The biggest discount we found is 28% on CORSAIR RM1000x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black at Amazon.
The lowest price we found is £5.45 while the highest is £156.70.
Prices for the best Power Supplies deals average at £56.80.
Last updated on October 5, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Power Supplies.