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.

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Corsair RM850x High Performance Power Supply

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

£ 112.23  inc. vat

£119.99save £7.76

£93.52 ex. vat

£99.99save £6.47
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QuickFind: 724683   |   Mfr part code: CP-9020093-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

£ 49.98  inc. vat

£41.65 ex. vat

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

£ 29.34  inc. vat

£24.45 ex. vat

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QuickFind: 713434   |   Mfr part code: ACP-I500HG

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

£ 82.98  inc. vat

£93.42save £10.44

£69.15 ex. vat

£77.85save £8.70
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QuickFind: 730210   |   Mfr part code: 210-GQ-0750-V3

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

£ 40.13  inc. vat

£43.10save £2.97

£33.44 ex. vat

£35.91save £2.47
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QuickFind: 702009   |   Mfr part code: CP-9020097-UK

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

£ 72.06  inc. vat

£60.05 ex. vat

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

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

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QuickFind: 566862   |   Mfr part code: PSUACE550BR

Cooler Master MasterWatt Lite 700 PSU

  • Advanced Circuit Design
  • Silent and Durable
  • Advanced Circuit Design
  • Safety Guardian
  • 80 Plus

£ 54.35  inc. vat

£61.98save £7.63

£45.29 ex. vat

£51.65save £6.36
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QuickFind: 773362   |   Mfr part code: MPX-7001-ACABW-UK

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

£ 18.98  inc. vat

£15.81 ex. vat

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QuickFind: 158479   |   Mfr part code: PSUCIT400HE

Corsair TX550M 550W 80 Plus Gold Power Supply

  • 550W Corsair TX-M Series TX550M PSU
  • 80PLUS Gold
  • Hybrid Modular, Single Rail
  • 43A + 12V, 120mm Fan
  • ATX PSU

£ 62.99  inc. vat

£71.81save £8.82

£52.49 ex. vat

£59.84save £7.35
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QuickFind: 782056   |   Mfr part code: CP-9020133-UK

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

£70.68save £3.69

£55.82 ex. vat

£58.90save £3.08
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QuickFind: 584214   |   Mfr part code: CP-9020076-UK

Evga 430w 80+ White Series Psu

  • 80 Plus Efficiency
  • Continuous Power
  • 12V Single Rail

£ 33.22  inc. vat

£27.68 ex. vat

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QuickFind: 766944   |   Mfr part code: 100-W1-0430-K3

EVGA 450W BT 80+ Bronze PSU

  • Single +12V Rail
  • Continuous Power
  • Bronze Rated Efficiency
  • Heavy Duty Protections

£ 34.49  inc. vat

£38.28save £3.79

£28.74 ex. vat

£31.90save £3.16
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QuickFind: 804904   |   Mfr part code: 100-BT-0450-K3

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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

£ 52.96  inc. vat

£59.31save £6.35

£44.13 ex. vat

£49.42save £5.29
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QuickFind: 584148   |   Mfr part code: RS550-AMAAB1-UK

Corsair RM1000i RMi Series 1000 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 470 x 405 x 165

£ 160.61  inc. vat

£168.99save £8.38

£133.84 ex. vat

£140.82save £6.98
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QuickFind: 715155   |   Mfr part code: CP-9020084-UK

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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.