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PC Computer Power Supply Units (42)

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EVGA 450W BT 80+ Bronze PSU

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

£ 39.34  inc. vat

£44.44save £5.10

£ 32.78 ex. vat

£37.03save £4.25

Coolermaster Masterwatt Lite V2 400w PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230v PSU

£ 28.01  inc. vat

£33.84save £5.83

£ 23.34 ex. vat

£28.20save £4.86

Cooler Master MasterWatt Lite 600 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.07  inc. vat

£41.16save £3.09

£ 31.72 ex. vat

£34.30save £2.58

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...

£ 37.98  inc. vat

£48.75save £10.77

£ 31.65 ex. vat

£40.62save £8.97

Cooler Master MasterWatt Lite 500 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.91  inc. vat

£ 32.42 ex. vat

Free Delivery EVGA 650W G2 Fully Modular 80+ PSU

EVGA 650W G2 Fully Modular 80+ PSU

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

£ 103.46  inc. vat

£ 86.21 ex. vat

Corsair VS Series VS550 ATX Power Supply

  • 2x Molex Connectors
  • 7x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 43.98  inc. vat

£46.48save £2.50

£ 36.65 ex. vat

£38.73save £2.08

Corsair VS450 450 W Active PFC 80 PLUS Certified Power

  • 80 PLUS efficiency: Runs cooler and uses less power than non-certified...
  • 3-year warranty: Backed by CORSAIR's legendary technical support and...

£ 37.98  inc. vat

£ 31.65 ex. vat

Evga 500w 80+ White Series Psu

  • 80PLUS
  • Fully Wired
  • Single Rail,
  • Intelligent Auto fan
  • ATX PSU

£ 42.99  inc. vat

£45.80save £2.81

£ 35.82 ex. vat

£38.16save £2.34

Cooler Master MasterWatt Lite 700 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 46.98  inc. vat

£ 39.15 ex. vat

Free Delivery EVGA 600W White Series 80+ Power Supply

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)

£ 61.41  inc. vat

£ 51.17 ex. vat

Free Delivery Be Quiet! 600w Psu - System Power 8

Be Quiet! 600w Psu - System Power 8

  • 80PLUS® certification
  • Quiet Operation
  • Attractively Sleeved Cables
  • Fully Wired

£ 66.71  inc. vat

£ 55.59 ex. vat

Game Max GM500 500w 80 Plus Bronze Modular Power Supply

  • High efficiency PSU, up to 85% efficiency
  • 14cm silent black fan
  • ATX12V Ver.2.30 compliant with ATX12V Ver.2.31

£ 41.99  inc. vat

£ 34.99 ex. vat

Free Delivery Antec VP600P 600w PSU

Antec VP600P 600w PSU

  • 600W Continuous Power
  • 2 Years Antec Warranty
  • Thermal Manager

£ 50.99  inc. vat

£ 42.49 ex. vat

Free Delivery Be Quiet! Straight Power 10 Cm Power Supply (500 Watts) 80 Plus Gold

Be Quiet! Straight Power 10 Cm Power Supply (500 Watts) 80 Plus Gold

  • The funnel-shaped fan opening of the PSU case is significant big and...
  • 500 Watts of continuous power with stable four 12V-rail design...

£ 79.98  inc. vat

£ 66.65 ex. vat

Corsair VS Series 350 Watt Power Supply

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

£ 32.99  inc. vat

£ 27.49 ex. vat

Be Quiet 400W Pure Power 10 CM Semi Modular PSU/Power S

  • 400 Watts of continuous power
  • 80PLUS® Silver certification
  • Exceptionally quiet operation
  • Stable operation
  • Modular cable management

£ 44.42  inc. vat

£52.73save £8.31

£ 37.01 ex. vat

£43.94save £6.93
Free Delivery Corsair 650W CX650 Bronze ATX Power Supply/PSU

Corsair 650W CX650 Bronze ATX Power Supply/PSU

  • 650W Corsair CX Series CX650
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 54A +12V, 120mm Fan

£ 59.99  inc. vat

£64.48save £4.49

£ 49.99 ex. vat

£53.73save £3.74
Free Delivery Corsair 750W CX750 Bronze ATX Power Supply/PSU

Corsair 750W CX750 Bronze ATX Power Supply/PSU

  • 750W Corsair CX Series CX750
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 62.5A +12V, 140mm Fan

£ 71.36  inc. vat

£ 59.46 ex. vat

Be Quiet SFX Power 2 300W Fully Wired 80+ Bronze Power Supply

  • Black Coloured PSU with a 80mm Silent Cooling Fan
  • Equipped with a Dual 12v Rail Delivering upto Amps
  • Equipped with 1 PCI-E Connectors for Graphics Cards

£ 46.98  inc. vat

£ 39.15 ex. vat

Free Delivery Be Quiet! Straight Power 10 Cm Power Supply 700 Watts 80 Plus Gold PSU

Be Quiet! Straight Power 10 Cm Power Supply 700 Watts 80 Plus Gold PSU

  • The funnel-shaped fan opening of the PSU case allows high airflow...
  • 700 Watts of continuous power with stable four 12V-rail design...

£ 100.48  inc. vat

£ 83.73 ex. vat

Free Delivery Be Quiet! Straight Power 10 Cm Power Supply (600 Watts) 80 Plus Gold

Be Quiet! Straight Power 10 Cm Power Supply (600 Watts) 80 Plus Gold

  • The funnel-shaped fan opening of the PSU case allows high airflow...
  • 600 Watts of continuous power with stable four 12V-rail design...

£ 91.96  inc. vat

£ 76.63 ex. vat

Free Delivery Be Quiet! Straight Power 10 Cm Power Supply (800 Watts) 80 Plus Gold

Be Quiet! Straight Power 10 Cm Power Supply (800 Watts) 80 Plus Gold

  • The funnel fan opening of the PSU case allows high airflow intake...
  • 800 Watts of continuous power with stable four 12V-rail design...

£ 115.98  inc. vat

£ 96.65 ex. vat

Free Delivery Evga 500w 80+ Bronze Psu

Evga 500w 80+ Bronze Psu

  • Power Device / Power Provided - 500Watt
  • 80 PLUS certification - Bronze
  • Form factor - Internal
  • Modularity - Non Modular
  • Power Device Cooling System - 120 mm fan

£ 56.99  inc. vat

£ 47.49 ex. vat

EVGA 450W BT 80+ Bronze PSU

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

£ 39.34  inc. vat

£44.44save £5.10

£ 32.78 ex. vat

£37.03save £4.25
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QuickFind: 804904   |   Mfr part code: 100-BT-0450-K3

Coolermaster Masterwatt Lite V2 400w PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230v PSU

£ 28.01  inc. vat

£33.84save £5.83

£ 23.34 ex. vat

£28.20save £4.86
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QuickFind: 828324   |   Mfr part code: MPX-4001-ACABW-KS

Cooler Master MasterWatt Lite 600 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.07  inc. vat

£41.16save £3.09

£ 31.72 ex. vat

£34.30save £2.58
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QuickFind: 828326   |   Mfr part code: MPX-6001-ACABW-KS

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...

£ 37.98  inc. vat

£48.75save £10.77

£ 31.65 ex. vat

£40.62save £8.97
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QuickFind: 781898   |   Mfr part code: CP-9020120-UK

Cooler Master MasterWatt Lite 500 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.91  inc. vat

£ 32.42 ex. vat

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QuickFind: 828325   |   Mfr part code: MPX-5001-ACABW-KS

EVGA 650W G2 Fully Modular 80+ PSU

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

£ 103.46  inc. vat

£ 86.21 ex. vat

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

Corsair VS Series VS550 ATX Power Supply

  • 2x Molex Connectors
  • 7x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 43.98  inc. vat

£46.48save £2.50

£ 36.65 ex. vat

£38.73save £2.08
View Product

QuickFind: 834999   |   Mfr part code: CP-9020171-UK

Corsair VS450 450 W Active PFC 80 PLUS Certified Power

  • 80 PLUS efficiency: Runs cooler and uses less power than non-certified...
  • 3-year warranty: Backed by CORSAIR's legendary technical support and...

£ 37.98  inc. vat

£ 31.65 ex. vat

View Product

QuickFind: 835000   |   Mfr part code: CP-9020170-UK

Evga 500w 80+ White Series Psu

  • 80PLUS
  • Fully Wired
  • Single Rail,
  • Intelligent Auto fan
  • ATX PSU

£ 42.99  inc. vat

£45.80save £2.81

£ 35.82 ex. vat

£38.16save £2.34
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QuickFind: 767324   |   Mfr part code: 100-W1-0500-K3

Cooler Master MasterWatt Lite 700 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 46.98  inc. vat

£ 39.15 ex. vat

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QuickFind: 828327   |   Mfr part code: MPX-7001-ACABW-KS

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)

£ 61.41  inc. vat

£ 51.17 ex. vat

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

Be Quiet! 600w Psu - System Power 8

  • 80PLUS® certification
  • Quiet Operation
  • Attractively Sleeved Cables
  • Fully Wired

£ 66.71  inc. vat

£ 55.59 ex. vat

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QuickFind: 767786   |   Mfr part code: BN242

Game Max GM500 500w 80 Plus Bronze Modular Power Supply

  • High efficiency PSU, up to 85% efficiency
  • 14cm silent black fan
  • ATX12V Ver.2.30 compliant with ATX12V Ver.2.31

£ 41.99  inc. vat

£ 34.99 ex. vat

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QuickFind: 787826   |   Mfr part code: GM-500

Antec VP600P 600w PSU

  • 600W Continuous Power
  • 2 Years Antec Warranty
  • Thermal Manager

£ 50.99  inc. vat

£ 42.49 ex. vat

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QuickFind: 636554   |   Mfr part code: 0-761345-06425-5

Be Quiet! Straight Power 10 Cm Power Supply (500 Watts) 80 Plus Gold

  • The funnel-shaped fan opening of the PSU case is significant big and...
  • 500 Watts of continuous power with stable four 12V-rail design...

£ 79.98  inc. vat

£ 66.65 ex. vat

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QuickFind: 666221   |   Mfr part code: BN234

Corsair VS Series 350 Watt Power Supply

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

£ 32.99  inc. vat

£ 27.49 ex. vat

View Product

QuickFind: 726364   |   Mfr part code: CP-9020095-UK

Be Quiet 400W Pure Power 10 CM Semi Modular PSU/Power S

  • 400 Watts of continuous power
  • 80PLUS® Silver certification
  • Exceptionally quiet operation
  • Stable operation
  • Modular cable management

£ 44.42  inc. vat

£52.73save £8.31

£ 37.01 ex. vat

£43.94save £6.93
View Product

QuickFind: 779011   |   Mfr part code: BN276

Corsair 650W CX650 Bronze ATX Power Supply/PSU

  • 650W Corsair CX Series CX650
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 54A +12V, 120mm Fan

£ 59.99  inc. vat

£64.48save £4.49

£ 49.99 ex. vat

£53.73save £3.74
View Product

QuickFind: 782054   |   Mfr part code: CP-9020122-UK

Corsair 750W CX750 Bronze ATX Power Supply/PSU

  • 750W Corsair CX Series CX750
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 62.5A +12V, 140mm Fan

£ 71.36  inc. vat

£ 59.46 ex. vat

View Product

QuickFind: 782055   |   Mfr part code: CP-9020123-UK

Be Quiet SFX Power 2 300W Fully Wired 80+ Bronze Power Supply

  • Black Coloured PSU with a 80mm Silent Cooling Fan
  • Equipped with a Dual 12v Rail Delivering upto Amps
  • Equipped with 1 PCI-E Connectors for Graphics Cards

£ 46.98  inc. vat

£ 39.15 ex. vat

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QuickFind: 620499   |   Mfr part code: BN226

Be Quiet! Straight Power 10 Cm Power Supply 700 Watts 80 Plus Gold PSU

  • The funnel-shaped fan opening of the PSU case allows high airflow...
  • 700 Watts of continuous power with stable four 12V-rail design...

£ 100.48  inc. vat

£ 83.73 ex. vat

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QuickFind: 666219   |   Mfr part code: BN236

Be Quiet! Straight Power 10 Cm Power Supply (600 Watts) 80 Plus Gold

  • The funnel-shaped fan opening of the PSU case allows high airflow...
  • 600 Watts of continuous power with stable four 12V-rail design...

£ 91.96  inc. vat

£ 76.63 ex. vat

View Product

QuickFind: 666220   |   Mfr part code: BN235

Be Quiet! Straight Power 10 Cm Power Supply (800 Watts) 80 Plus Gold

  • The funnel fan opening of the PSU case allows high airflow intake...
  • 800 Watts of continuous power with stable four 12V-rail design...

£ 115.98  inc. vat

£ 96.65 ex. vat

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QuickFind: 666223   |   Mfr part code: BN237

Evga 500w 80+ Bronze Psu

  • Power Device / Power Provided - 500Watt
  • 80 PLUS certification - Bronze
  • Form factor - Internal
  • Modularity - Non Modular
  • Power Device Cooling System - 120 mm fan

£ 56.99  inc. vat

£ 47.49 ex. vat

View Product

QuickFind: 759086   |   Mfr part code: 100-B1-0500-K3

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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.