PC Computer Power Supply Units

Free Delivery available on orders over £49.99*
More information about delivery

14 Day money back guarantee
More information about returns

PC Power Supply Units

When we think of ways to improve our computers performance many of us will overlook the value of the PC power supply unit (PSU). But the power supply unit is a vital piece of equipment that should not be under estimated.

Why You Need A High Quality PSU

The role of a PC power supply unit is to convert the AC electric power that comes from the mains to the DC power that the computer requires. But it can do much more than that. A good quality power supply can make your system more efficient, stable and reliable.

Choosing Your Power Supply

Firstly, ensure you select a PSU from a reputable manufacturer. Here at Ebuyer we have PSUs from Antec, Corsair and Coolermaster amongst other leading names in the tech industry.

Output

When choosing a PSU the output is very important. This output is listed as watts and should be greater than the combined wattage of all the components in your system plus 40 to 60%. Very simplistically speaking the more demands you place on your system the higher the wattage of the PC power supply unit should be. For example, a high end gamer will require a far higher wattage than a home user who surfs the net and does some word processing.

Energy Efficiency

But it isn't all about the wattage. Efficiency is important so look for PSUs that have the 80 Plus certification. This indicates that the PSU will waste less energy than other units making it cheaper to run and much more reliable.

PSU Cabling

There are different types of PSU and cabling. Fully modular power supply units enable the user to remove surplus cables from the case, whilst a semi modular PSU has a mix of detachable and hard wired, or permanent, cables.

The third option is a fully wired PSU which, as the name suggests, does not allow any cables to be disconnected. Of the three the fully modular unit is the most versatile.

View all 200 PC Computer Power Supply Units
  • 1
  • 2
  • 3
  • 4
  • 5
  • 14 pages with 200 products

Builder 500W Fully Wired Efficient Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Fully Wired
  • Equipped with a Single 12v Rail Delivering upto 20 Amps
  • 1 Year Warranty

£14.06 inc. vat

£11.71 ex. vat

View product

QuickFind: 621475   |   Mfr part code: PSU500BUILDERBLACK

Corsair VS Series 550 Watt VS550 Power Supply

  • At least 85% efficient (80 PLUS White 230v EU Certified)
  • Corsair engineering and quality control
  • Plentiful connectors and long cables

£40.97 inc. vat

£49.98save £9.01

£34.14 ex. vat

£41.65save £7.51
View product

QuickFind: 702009   |   Mfr part code: CP-9020097-UK

£20 £25

Cooler Master B Series B700 ver.2 PSU

Cooler Master B Series B700 ver.2 PSU

  • Higher than 85% efficiency under typical load operation
  • Active PFC & PWM Combo Control
  • Silent 120mm fan with intelligent fan speed control

£47.27 inc. vat

£72.36save £25.09

£39.39 ex. vat

£60.30save £20.91
View product

QuickFind: 702907   |   Mfr part code: RS700-ACABB1-UK

Aerocool Integrator 500W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • High Efficiency
  • 500w 80+ Efficiency
  • 12cm Fan
  • Dimensions 150mm x 85mm x 140mm (W x H x D)

£29.55 inc. vat

£24.62 ex. vat

View product

QuickFind: 713434   |   Mfr part code: ACP-I500HG

Gigabyte 700W Bronze PSU

  • Modular Design
  • 120mm smart control fan
  • 80 Plus Bronze certified
  • Single +12V rail
  • Supports NVIDIA SLI / AMD CROSSFIRE

£49.97 inc. vat

£41.64 ex. vat

View product

QuickFind: 753297   |   Mfr part code: GP-B700H-UK

Aerocool Integrator 700W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • 12cm Silent Fan
  • 700w 80+ Efficiency
  • Dimensions 150mm x 85mm x 140mm (W x H x D)

£37.46 inc. vat

£31.21 ex. vat

View product

QuickFind: 713439   |   Mfr part code: ACP-I700HG

Corsair RM650x High Performance Power Supply

  • 80 PLUS Gold certified
  • Zero RPM Fan Mode
  • MTBF 100,000 hours
  • Seven year warranty

£88.97 inc. vat

£94.98save £6.01

£74.14 ex. vat

£79.15save £5.01
View product

QuickFind: 724681   |   Mfr part code: CP-9020091-UK

EVGA 600W White Series 80+ Power Supply

  • 80 Plus Effieciency
  • 1x 120mm Fan
  • Quiet and Intelligent Auto Fan for near-silent operation
  • Dimensions 150 x 85 x 140 mm (WxHxD)

£41.49 inc. vat

£53.25save £11.76

£34.57 ex. vat

£44.37save £9.80
View product

QuickFind: 716703   |   Mfr part code: 100-W1-0600-K3

Corsair VS Series 450 Watt Power Supply

  • A dedicated single +12V rail offers maximum
  • Conforms to ATX12V v2.31 standard,
  • AC input from 200~240VAV

£34.48 inc. vat

£40.37save £5.89

£28.73 ex. vat

£33.64save £4.91
View product

QuickFind: 726366   |   Mfr part code: CP-9020096-UK

EVGA 750 GQ Modular Gold Rated 80+ Power Supply

  • 80 PLUS Gold certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Modular Design to reduce clutter and improve airflow

£80.03 inc. vat

£97.98save £17.95

£66.69 ex. vat

£81.65save £14.96
View product

QuickFind: 730210   |   Mfr part code: 210-GQ-0750-V3

CIT Dual Rail 400W Fully Wired Efficient Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Dual 12v Rail Delivering upto 21 Amps
  • Equipped with 1 PCI-E Connectors for Graphics Cards

£19.60 inc. vat

£16.33 ex. vat

View product

QuickFind: 158479   |   Mfr part code: PSUCIT400HE

Ace Black 120mm Fan 550W Fully Wired Efficient Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 22 Amps
  • 1 Year Warranty for Peace of Mind

£15.51 inc. vat

£12.92 ex. vat

View product

QuickFind: 566862   |   Mfr part code: PSUACE550BR

EVGA 650W G2 Fully Modular 80+ PSU

  • Single +12V Rail
  • LLC Resonant Circuit layout
  • Fully Modular
  • Double Ball Bearing Fan
  • Gold Rated Efficiency

£88.66 inc. vat

£98.99save £10.33

£73.88 ex. vat

£82.49save £8.61
View product

QuickFind: 716706   |   Mfr part code: 220-G2-0650-Y3

Corsair CSM 650W Semi Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£79.98 inc. vat

£100.35save £20.37

£66.65 ex. vat

£83.62save £16.97
View product

QuickFind: 584216   |   Mfr part code: CP-9020077-UK

Corsair RM850x High Performance Power Supply

  • 80 PLUS Gold certified
  • Zero RPM Fan Mode
  • MTBF 100,000 hours
  • Seven year warranty

£119.20 inc. vat

£136.97save £17.77

£99.33 ex. vat

£114.14save £14.81
View product

QuickFind: 724683   |   Mfr part code: CP-9020093-UK

  • 1
  • 2
  • 3
  • 4
  • 5
  • 14 pages with 200 products