PC Computer Power Supply Units (137 products)

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 about PC Computer Power Supply Units

Showing 1 - 24 of 137 results
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Thermaltake Litepower 550W PSU

  • 550W PSU
  • Ultra-Quiet Fan
  • Elongated Sleeved Cables
  • Utmost Reliability and Compatibility
  • Powerful Dedicated +12v Output

£ 30.24  inc. vat

£ 25.20 ex. vat

More Info

Thermaltake Litepower 450W PSU

  • Ultra-Quiet Fan
  • Cables with High Flexibility
  • High-Quality Components

£ 26.98  inc. vat

£ 22.48 ex. vat

More Info

EVGA 100-BR-0700-K3 700 BR, 80+ Bronze 700W, Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • 80 PLUS Bronze certified
  • 85% efficiency or higher under typical loads
  • 3 Year Warranty

£ 49.88  inc. vat

£53.12save £3.24

£ 41.56 ex. vat

£44.26save £2.70
More Info

EVGA 750w G3 80+ Modular Gold

  • Unbeatable 10 Year Warranty
  • 80 PLUS Gold certified
  • Fully Modular
  • Hydraulic Dynamic Bearing Fan

£ 101.49  inc. vat

£120.48save £18.99

£ 84.57 ex. vat

£100.40save £15.83
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EVGA BR 450W 80+ Bronze Power Supply

  • Quiet and Intelligent Auto Fan
  • 80 PLUS Bronze certified
  • 3 Year Warranty
  • Hard Lined Design
  • Long Sleeve Bearing Fan

£ 31.34  inc. vat

£40.56save £9.22

£ 26.11 ex. vat

£33.80save £7.69
More Info

Kolink Core Series 500W 80 Plus Certified Power Supply

  • Wattage: 500W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

£ 28.97  inc. vat

£ 24.14 ex. vat

More Info

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

£ 65.27  inc. vat

£75.47save £10.20

£ 54.39 ex. vat

£62.89save £8.50
More Info

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

£ 42.99  inc. vat

£45.33save £2.34

£ 35.82 ex. vat

£37.77save £1.95
More Info

Cooler Master MasterWatt 650 Semi Modular PSU

  • 80 PLUS Bronze Certified
  • Durable LDB Bearing
  • Semi-Fanless up to 15% load
  • Dual Forward and DC-to-DC Circuit Design
  • More Conductive PCI-e Cables

£ 63.35  inc. vat

£ 52.79 ex. vat

More Info

Corsair 750W TX750M Gold Hybid Modular Power Supply/PSU

  • 750W Corsair TX-M Series TX750M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail, 62A + 12V, 120mm Fan
  • ATX PSU

£ 81.98  inc. vat

£89.44save £7.46

£ 68.31 ex. vat

£74.53save £6.22
More Info

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

£ 53.97  inc. vat

£ 44.97 ex. vat

More Info

Corsair VS Series VS650 650W Power Supply 80 Plus

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

£ 48.47  inc. vat

£ 40.39 ex. vat

More Info

Corsair RMx Series RM550x 80 PLUS Gold Fully Modular ATX PSU

  • 80 Plus Gold
  • Low Noise Operation
  • Fully Modular
  • 100% All Japanese 105c Capacitors
  • 10 Year Warranty

£ 77.26  inc. vat

£ 64.38 ex. vat

More Info

EVGA SuperNOVA 650w PSU

  • 5 Year Warranty
  • 80PLUS Gold Certificate, with up to 90% efficiency
  • Highest quality Japanese Capacitors
  • Fully Modular to reduce clutter and improve airflow

£ 83.80  inc. vat

£ 69.83 ex. vat

More Info

Kolink Core Series 300W 80 Plus Certified Power Supply

  • Wattage: 300W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

£ 20.19  inc. vat

£ 16.82 ex. vat

More Info

Evga 500w 80+ White Series Psu

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

£ 40.26  inc. vat

£45.41save £5.15

£ 33.55 ex. vat

£37.84save £4.29
More Info

Corsair SF600 Platinum Fully Modular SFX Power Supply

  • Compact SFX Form-Factor
  • Individually Sleeved, Fully Modular Cables
  • 80 Plus Platinum Certified
  • 100% Japanese Capacitors
  • Zero RPM Fan Mode

£ 100.56  inc. vat

£ 83.80 ex. vat

More Info

EVGA GM 450 Watt 80+ Gold SFX PSU/Power Supply

  • 100% Japanese Capacitors on Main PCB
  • 80 PLUS Gold certified
  • Double Ball Bearing fan
  • Active Power Factor Correction
  • SFX-Standard Form Factor

£ 54.99  inc. vat

£ 45.82 ex. vat

More Info

Kolink Core Series 700W 80 Plus Certified Power Supply

  • Wattage: 700W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

£ 37.60  inc. vat

£ 31.33 ex. vat

More Info

Corsair RMx Series White RM850x Power supply

  • Pristine White Casing
  • Tuned for Low Noise Operation
  • 80 Plus Gold Certified
  • Zero RPM Fan Mode
  • Fully Modular

£ 127.94  inc. vat

£ 106.61 ex. vat

More Info

Be Quiet! Pure Power 11 300w Power Supply

  • 80 Plus Bronze
  • Exceptionally Quiet Operation
  • Silence-Optimized 120mm Be Quiet! Fan
  • Attractively Sleeved Cables
  • 5 Year Warranty

£ 37.49  inc. vat

£39.98save £2.49

£ 31.24 ex. vat

£33.31save £2.07
More Info

Corsair RM850 850 Watt 80+ Gold Fully Modular PSU

  • 80+ Gold Certified
  • Fully Modular
  • 140mm Fan size
  • Multiple-GPU Ready
  • Zero RPM Fan Mode

£ 107.58  inc. vat

£ 89.65 ex. vat

More Info

Corsair RM750 750 Watt 80+ Gold Fully Modular PSU

  • 80+ Gold Certified
  • Fully Modular
  • 140mm Fan Size
  • Multiple GPU
  • Zero RPM Fan Mode

£ 83.98  inc. vat

£ 69.98 ex. vat

More Info

Corsair HX1200i High Performance Series (1200 Watt) 80 Plus Platinum ATX Power Supply Unit

  • HXi Series HX1200i High-Performance ATX Power Supply
  • 1200 Watt 80 Plus Platinum Certified PSU
  • Zero RPM Fan Mode

£ 236.08  inc. vat

£ 196.73 ex. vat

More Info

Thermaltake Litepower 550W PSU

  • 550W PSU
  • Ultra-Quiet Fan
  • Elongated Sleeved Cables
  • Utmost Reliability and Compatibility
  • Powerful Dedicated +12v Output

QuickFind: 845737

Mfr part code: PS-LTP-0550NPCNUK-2

£ 30.24  inc. vat

£ 25.20 ex. vat

More Info

Thermaltake Litepower 450W PSU

  • Ultra-Quiet Fan
  • Cables with High Flexibility
  • High-Quality Components

QuickFind: 856008

Mfr part code: PS-LTP-0450NPCN UK-2

£ 26.98  inc. vat

£ 22.48 ex. vat

More Info

EVGA 100-BR-0700-K3 700 BR, 80+ Bronze 700W, Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • 80 PLUS Bronze certified
  • 85% efficiency or higher under typical loads
  • 3 Year Warranty

QuickFind: 856195

Mfr part code: 100-BR-0700-K3

£ 49.88  inc. vat

£53.12save £3.24

£ 41.56 ex. vat

£44.26save £2.70
More Info

EVGA 750w G3 80+ Modular Gold

  • Unbeatable 10 Year Warranty
  • 80 PLUS Gold certified
  • Fully Modular
  • Hydraulic Dynamic Bearing Fan

QuickFind: 767601

Mfr part code: 220-G3-0750-X3

£ 101.49  inc. vat

£120.48save £18.99

£ 84.57 ex. vat

£100.40save £15.83
More Info

EVGA BR 450W 80+ Bronze Power Supply

  • Quiet and Intelligent Auto Fan
  • 80 PLUS Bronze certified
  • 3 Year Warranty
  • Hard Lined Design
  • Long Sleeve Bearing Fan

QuickFind: 869760

Mfr part code: 100-BR-0450-K3

£ 31.34  inc. vat

£40.56save £9.22

£ 26.11 ex. vat

£33.80save £7.69
More Info

Kolink Core Series 500W 80 Plus Certified Power Supply

  • Wattage: 500W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

QuickFind: 864707

Mfr part code: KL-C500

£ 28.97  inc. vat

£ 24.14 ex. vat

More Info

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

QuickFind: 782056

Mfr part code: CP-9020133-UK

£ 65.27  inc. vat

£75.47save £10.20

£ 54.39 ex. vat

£62.89save £8.50
More Info

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

QuickFind: 834999

Mfr part code: CP-9020171-UK

£ 42.99  inc. vat

£45.33save £2.34

£ 35.82 ex. vat

£37.77save £1.95
More Info

Cooler Master MasterWatt 650 Semi Modular PSU

  • 80 PLUS Bronze Certified
  • Durable LDB Bearing
  • Semi-Fanless up to 15% load
  • Dual Forward and DC-to-DC Circuit Design
  • More Conductive PCI-e Cables

QuickFind: 826434

Mfr part code: MPX-6501-AMAAB-UK

£ 63.35  inc. vat

£ 52.79 ex. vat

More Info

Corsair 750W TX750M Gold Hybid Modular Power Supply/PSU

  • 750W Corsair TX-M Series TX750M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail, 62A + 12V, 120mm Fan
  • ATX PSU

QuickFind: 782058

Mfr part code: CP-9020131-UK

£ 81.98  inc. vat

£89.44save £7.46

£ 68.31 ex. vat

£74.53save £6.22
More Info

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

QuickFind: 745621

Mfr part code: CP-9020101-UK

£ 53.97  inc. vat

£ 44.97 ex. vat

More Info

Corsair VS Series VS650 650W Power Supply 80 Plus

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

QuickFind: 835150

Mfr part code: CP-9020172-UK

£ 48.47  inc. vat

£ 40.39 ex. vat

More Info

Corsair RMx Series RM550x 80 PLUS Gold Fully Modular ATX PSU

  • 80 Plus Gold
  • Low Noise Operation
  • Fully Modular
  • 100% All Japanese 105c Capacitors
  • 10 Year Warranty

QuickFind: 856936

Mfr part code: CP-9020177-UK

£ 77.26  inc. vat

£ 64.38 ex. vat

More Info

EVGA SuperNOVA 650w PSU

  • 5 Year Warranty
  • 80PLUS Gold Certificate, with up to 90% efficiency
  • Highest quality Japanese Capacitors
  • Fully Modular to reduce clutter and improve airflow

QuickFind: 830658

Mfr part code: 120-GP-0650-X3

£ 83.80  inc. vat

£ 69.83 ex. vat

More Info

Kolink Core Series 300W 80 Plus Certified Power Supply

  • Wattage: 300W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

QuickFind: 864705

Mfr part code: KL-C300

£ 20.19  inc. vat

£ 16.82 ex. vat

More Info

Evga 500w 80+ White Series Psu

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

QuickFind: 767324

Mfr part code: 100-W1-0500-K3

£ 40.26  inc. vat

£45.41save £5.15

£ 33.55 ex. vat

£37.84save £4.29
More Info

Corsair SF600 Platinum Fully Modular SFX Power Supply

  • Compact SFX Form-Factor
  • Individually Sleeved, Fully Modular Cables
  • 80 Plus Platinum Certified
  • 100% Japanese Capacitors
  • Zero RPM Fan Mode

QuickFind: 882203

Mfr part code: CP-9020182-UK

£ 100.56  inc. vat

£ 83.80 ex. vat

More Info

EVGA GM 450 Watt 80+ Gold SFX PSU/Power Supply

  • 100% Japanese Capacitors on Main PCB
  • 80 PLUS Gold certified
  • Double Ball Bearing fan
  • Active Power Factor Correction
  • SFX-Standard Form Factor

QuickFind: 899438

Mfr part code: 123-GM-0450-Y3

£ 54.99  inc. vat

£ 45.82 ex. vat

More Info

Kolink Core Series 700W 80 Plus Certified Power Supply

  • Wattage: 700W
  • 80 Plus certified
  • Quiet 12cm fan cooling
  • Active PFC
  • 2 Year Warranty

QuickFind: 864711

Mfr part code: KL-C700

£ 37.60  inc. vat

£ 31.33 ex. vat

More Info

Corsair RMx Series White RM850x Power supply

  • Pristine White Casing
  • Tuned for Low Noise Operation
  • 80 Plus Gold Certified
  • Zero RPM Fan Mode
  • Fully Modular

QuickFind: 864767

Mfr part code: CP-9020188-UK

£ 127.94  inc. vat

£ 106.61 ex. vat

More Info

Be Quiet! Pure Power 11 300w Power Supply

  • 80 Plus Bronze
  • Exceptionally Quiet Operation
  • Silence-Optimized 120mm Be Quiet! Fan
  • Attractively Sleeved Cables
  • 5 Year Warranty

QuickFind: 865164

Mfr part code: BN290

£ 37.49  inc. vat

£39.98save £2.49

£ 31.24 ex. vat

£33.31save £2.07
More Info

Corsair RM850 850 Watt 80+ Gold Fully Modular PSU

  • 80+ Gold Certified
  • Fully Modular
  • 140mm Fan size
  • Multiple-GPU Ready
  • Zero RPM Fan Mode

QuickFind: 908644

Mfr part code: CP-9020196-UK

£ 107.58  inc. vat

£ 89.65 ex. vat

More Info

Corsair RM750 750 Watt 80+ Gold Fully Modular PSU

  • 80+ Gold Certified
  • Fully Modular
  • 140mm Fan Size
  • Multiple GPU
  • Zero RPM Fan Mode

QuickFind: 908647

Mfr part code: CP-9020195-UK

£ 83.98  inc. vat

£ 69.98 ex. vat

More Info

Corsair HX1200i High Performance Series (1200 Watt) 80 Plus Platinum ATX Power Supply Unit

  • HXi Series HX1200i High-Performance ATX Power Supply
  • 1200 Watt 80 Plus Platinum Certified PSU
  • Zero RPM Fan Mode

QuickFind: 700189

Mfr part code: CP-9020070-UK

£ 236.08  inc. vat

£ 196.73 ex. vat

More Info
Showing 1 - 24 of 137 results
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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.

Learn more

The best PSUs for gaming