PC Computer Power Supply Units

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.

Read more...

View more...
View all 38 PC Computer Power Supply Units

EVGA 750 GQ Semi Modular Gold Rated 80+ Power Supply

  • 80 PLUS Gold certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Modular Design reduces clutter & improve airflow
  • Whisper Silent 135mm Fluid Dynamic Bearing Fan

£ 83.98  inc. vat

£93.42save £9.44

£69.98 ex. vat

£77.85save £7.87
View Product

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

EVGA 650 GQ Modular Gold Rated 80+ Power Supply

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

£ 71.67  inc. vat

£59.72 ex. vat

View Product

QuickFind: 730191   |   Mfr part code: 210-GQ-0650-V3

Corsair CSM 550W Semi Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 51 Amps
  • Equipped with a single 6+2 pin PCI-E Connector for Graphics Cards...

£ 66.99  inc. vat

£73.96save £6.97

£55.82 ex. vat

£61.63save £5.81
View Product

QuickFind: 584214   |   Mfr part code: CP-9020076-UK

Coolermaster GM-Series 750W Semi Modular 80+ Bronze Power Supply

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

£ 67.89  inc. vat

£79.64save £11.75

£56.57 ex. vat

£66.36save £9.79
View Product

QuickFind: 584150   |   Mfr part code: RS750-AMAAB1-UK

CX Series CX450 450 Watt 80 PLUS

  • Low noise 80 PLUS Bronze certified efficiency
  • Reliable and compatible
  • Matte black finish, black-sleeved cables and black connectors...

£ 43.66  inc. vat

£48.27save £4.61

£36.38 ex. vat

£40.22save £3.84
View Product

QuickFind: 781898   |   Mfr part code: CP-9020120-UK

Corsair CX Series CX450M 450W 80 Plus Bronze Certified Modular ATX PSU

  • 80 Plus Bronze
  • Semi Modular PSU
  • Sleeved cables Low-Profile All Black
  • Supports ATX12V 2.3/2.2/2.01 and EPS12V 2.91 standards

£ 50.99  inc. vat

£42.49 ex. vat

View Product

QuickFind: 745621   |   Mfr part code: CP-9020101-UK

EVGA 500 BQ Power Supply

  • 80 PLUS Bronze
  • Hybrid Modular
  • SLI/CrossFire Ready
  • Single Rail
  • 3 Year Warranty

£ 50.61  inc. vat

£42.17 ex. vat

View Product

QuickFind: 768921   |   Mfr part code: 110-BQ-0500-K3

Corsair CXM 750W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 86.28  inc. vat

£71.90 ex. vat

View Product

QuickFind: 429987   |   Mfr part code: CP-9020061-UK

Corsair CSM 750W Semi Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 43 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 91.43  inc. vat

£91.76save £0.33

£76.19 ex. vat

£76.46save £0.27
View Product

QuickFind: 584217   |   Mfr part code: CP-9020078-UK

PowerCool 750W Semi Modular Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 54 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 44.91  inc. vat

£37.42 ex. vat

View Product

QuickFind: 191850   |   Mfr part code: PSUPC750AUBAM

PowerCool 550W Semi Modular 80+ Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 36 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 37.90  inc. vat

£31.58 ex. vat

View Product

QuickFind: 226458   |   Mfr part code: PSUPC550AUBAM

11% 11%

Cooler Master GM-Series 550W Semi Modular 80+ Bronze Power Supply

Cooler Master GM-Series 550W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120 Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 42 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 52.98  inc. vat

£59.31save £6.33

£44.15 ex. vat

£49.42save £5.27
View Product

QuickFind: 584148   |   Mfr part code: RS550-AMAAB1-UK

Corsair CS850M Semi-Modular 80+ Gold Certified Power Supply

  • 4th generation Intel Core processor Ready (Intel Haswell and Z87...
  • 80PLUS Gold certified, delivering over 90% energy efficiency at real...

£ 98.99  inc. vat

£109.71save £10.72

£82.49 ex. vat

£91.42save £8.93
View Product

QuickFind: 666538   |   Mfr part code: CP-9020086-UK

EVGA 600 BQ Power Supply

  • 80 PLUS Bronze
  • Hybrid Modular
  • SLI/CrossFire Ready
  • Single Rail
  • 3 Year Warranty

£ 63.36  inc. vat

£52.80 ex. vat

View Product

QuickFind: 768922   |   Mfr part code: 110-BQ-0600-K3

Fractal Design Intergra M 750w - Semi Modular Power Supply

  • 80 PLUS® Bronze certified efficiency
  • Modular cables
  • Extremely short 140mm case allows for easy installation in compact...
  • Quiet, temperature-controlled 120mm fan

£ 73.98  inc. vat

£61.65 ex. vat

View Product

QuickFind: 667154   |   Mfr part code: FD-PSU-IN3B-750W

Return to top

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.