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 49 - 72 of 137 results
Grid List

Corsair 650W CX650 Bronze ATX Power Supply/PSU

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

£ 63.04  inc. vat

£67.83save £4.79

£ 52.53 ex. vat

£56.52save £3.99
More Info

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

  • 80 Plus Platinum
  • Fully Modular
  • Zero RPM Mode
  • 10 Year Warranty

£ 169.98  inc. vat

£ 141.65 ex. vat

More Info

Antec 650W EA650G PRO EarthWatts Gold Pro PSU

  • 650 W
  • 80 Plus Gold Certified
  • Hybrid Modular Cable Management
  • Whisper-quiet, high-quality fan
  • 7 Year Warranty

£ 79.98  inc. vat

£ 66.65 ex. vat

More Info

Straight Power 11 450w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency
  • Powerful multi-GPU support
  • Japanese capacitors ensure reliability
  • 5-year manufacturer’s warranty

£ 78.48  inc. vat

£ 65.40 ex. vat

More Info

EVGA Supernova 750w PSU

  • 80 PLUS Gold certified
  • Fully Modular to reduce clutter and improve airflow.
  • 100% Japanese Capacitors

£ 95.99  inc. vat

£100.88save £4.89

£ 79.99 ex. vat

£84.06save £4.07
More Info

Thermaltake Smart RGB 500W PSU

  • 10 LED Light Bulbs
  • 15 Lighting Modes
  • Ultra-Quiet 120mm Fan
  • 80 Plus Certified
  • High Quality Components

£ 37.97  inc. vat

£ 31.64 ex. vat

More Info

Thermaltake Smart RGB 700W PSU

  • 10 LED Light Bulbs
  • 15 Lighting Modes
  • Ultra-Quiet 120mm Fan
  • 80 Plus Certified
  • High Quality Components

£ 61.49  inc. vat

£ 51.24 ex. vat

More Info

Corsair RM750x 80+ Gold Fully Modular Power Supply

  • 80 Plus Gold Certified
  • Low Noise Operation
  • Zero RPM Fan Mode
  • 100% Japanese 105'c Capacitors
  • Fully Modular Cables

£ 103.49  inc. vat

£113.00save £9.51

£ 86.24 ex. vat

£94.16save £7.92
More Info

Be Quiet! 500W System Power 9 PSU

  • Rock-solid stability with two strong 12V-rails
  • DC-to-DC technology for tight voltage regulation
  • Multi-GPU support with two PCIe connectors
  • Stand-by drain of less than 0.15 watts

£ 47.98  inc. vat

£ 39.98 ex. vat

More Info

Corsair AX1000 1000 Watt 80 Plus Titanium Fully Modular ATX Power Supply

  • 80 Plus Titanium Certified
  • 100% Japanese 105'c Capacitors
  • Zero RPM Fan Mode
  • 135mm Cooling Fan
  • Fully Modular Cables

£ 212.99  inc. vat

£ 177.49 ex. vat

More Info

Be Quiet Power Zone 750W Fully Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 135mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£ 96.11  inc. vat

£ 80.09 ex. vat

More Info

Corsair RM650i RMi Series 650 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 425 x 310 x 445 (mm)

£ 117.66  inc. vat

£ 98.05 ex. vat

More Info

Corsair RM1000x High Performance Power Supply

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

£ 146.66  inc. vat

£ 122.21 ex. vat

More Info

Evga 1000w G3 80+ Modular Gold

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

£ 140.92  inc. vat

£151.98save £11.06

£ 117.43 ex. vat

£126.65save £9.22
More Info

Corsair SF750 750w 80 Plus Platinum High Performance SFX Power Supply

  • 80 Plus Platinum Certified
  • Japanese 105'c Capacitors
  • Zero RPM Fan Mode
  • 92mm PWM Low Noise Cooling Fan
  • Fully Modular Cables

£ 126.95  inc. vat

£ 105.79 ex. vat

More Info

Corsair SF450 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

£ 85.49  inc. vat

£91.06save £5.57

£ 71.24 ex. vat

£75.88save £4.64
More Info

Antec Earth Watts 380W Fully Wired 80+ Bronze Power Supply

  • Green Coloured PSU with a 80mm Silent Cooling Fan
  • Equipped with a Dual 12v Rail Delivering upto 32 Amps
  • Equipped with 1 PCI-E Connectors for Graphics Cards

£ 45.34  inc. vat

£ 37.78 ex. vat

More Info

CISCO SYSTEMS PWR-C1-350WAC= Cisco - Power supply

  • 350W AC Config 1 power supply

£ 384.99  inc. vat

£ 320.82 ex. vat

Finance from per month.
( APR) representative

More Info

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

£ 48.99  inc. vat

£ 40.82 ex. vat

More Info

Corsair HX1000i High Performance Series (1000 Watt) 80 Plus Platinum Atx Power Supply Unit

  • ZeroRPM mode for fanless operation at low loads
  • 140mm thermally controlled fluid dynamic bearing
  • 80 PLUS Platinum efficiency

£ 204.99  inc. vat

£ 170.82 ex. vat

More Info

Fractal Design Edison M Series (650w) Power Supply Unit

  • 80PLUS Gold efficiency
  • 5 year warranty on the PSU
  • Compliant with the latest standards
  • High end capacitors
  • Silent, temperature-controlled 120mm FDB fan

£ 108.99  inc. vat

£ 90.82 ex. vat

More Info

BeQuiet Silent Wings Dark Power Pro 11 750W Power Supply

  • Black Coloured PSU with a 135mm Cooling Fan
  • Equipped with a Single 12v Rail
  • 80 Plus platinum

£ 156.60  inc. vat

£ 130.50 ex. vat

More Info

Be Quiet! 850W Modular PSU - Dark Power Pro 11

  • Fluid 135mm SilentWings® 3 Fan
  • Equipped with a Single 12v Rail
  • 80 Plus Platinum
  • Modular Design
  • SLI/XFire Ready

£ 175.49  inc. vat

£ 146.24 ex. vat

More Info

EVGA SuperNOVA 1300 G2 Power Supply

  • 80 PLUS Gold certified
  • Fully Modular to reduce clutter and improve airflow
  • NVIDIA SLI & AMD Crossfire Ready
  • Unbeatable 10 Year Warranty

£ 190.41  inc. vat

£ 158.67 ex. vat

More Info

Corsair 650W CX650 Bronze ATX Power Supply/PSU

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

QuickFind: 782054

Mfr part code: CP-9020122-UK

£ 63.04  inc. vat

£67.83save £4.79

£ 52.53 ex. vat

£56.52save £3.99
More Info

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

  • 80 Plus Platinum
  • Fully Modular
  • Zero RPM Mode
  • 10 Year Warranty

QuickFind: 788621

Mfr part code: CP-9020139-UK

£ 169.98  inc. vat

£ 141.65 ex. vat

More Info

Antec 650W EA650G PRO EarthWatts Gold Pro PSU

  • 650 W
  • 80 Plus Gold Certified
  • Hybrid Modular Cable Management
  • Whisper-quiet, high-quality fan
  • 7 Year Warranty

QuickFind: 810564

Mfr part code: 0-761345-11619-0

£ 79.98  inc. vat

£ 66.65 ex. vat

More Info

Straight Power 11 450w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency
  • Powerful multi-GPU support
  • Japanese capacitors ensure reliability
  • 5-year manufacturer’s warranty

QuickFind: 826244

Mfr part code: BN280

£ 78.48  inc. vat

£ 65.40 ex. vat

More Info

EVGA Supernova 750w PSU

  • 80 PLUS Gold certified
  • Fully Modular to reduce clutter and improve airflow.
  • 100% Japanese Capacitors

QuickFind: 830661

Mfr part code: 120-GP-0750-X3

£ 95.99  inc. vat

£100.88save £4.89

£ 79.99 ex. vat

£84.06save £4.07
More Info

Thermaltake Smart RGB 500W PSU

  • 10 LED Light Bulbs
  • 15 Lighting Modes
  • Ultra-Quiet 120mm Fan
  • 80 Plus Certified
  • High Quality Components

QuickFind: 855874

Mfr part code: PS-SPR-0500NHSAWK-1

£ 37.97  inc. vat

£ 31.64 ex. vat

More Info

Thermaltake Smart RGB 700W PSU

  • 10 LED Light Bulbs
  • 15 Lighting Modes
  • Ultra-Quiet 120mm Fan
  • 80 Plus Certified
  • High Quality Components

QuickFind: 855877

Mfr part code: PS-SPR-0700NHSAWK-1

£ 61.49  inc. vat

£ 51.24 ex. vat

More Info

Corsair RM750x 80+ Gold Fully Modular Power Supply

  • 80 Plus Gold Certified
  • Low Noise Operation
  • Zero RPM Fan Mode
  • 100% Japanese 105'c Capacitors
  • Fully Modular Cables

QuickFind: 858591

Mfr part code: CP-9020179-UK

£ 103.49  inc. vat

£113.00save £9.51

£ 86.24 ex. vat

£94.16save £7.92
More Info

Be Quiet! 500W System Power 9 PSU

  • Rock-solid stability with two strong 12V-rails
  • DC-to-DC technology for tight voltage regulation
  • Multi-GPU support with two PCIe connectors
  • Stand-by drain of less than 0.15 watts

QuickFind: 859747

Mfr part code: BN246

£ 47.98  inc. vat

£ 39.98 ex. vat

More Info

Corsair AX1000 1000 Watt 80 Plus Titanium Fully Modular ATX Power Supply

  • 80 Plus Titanium Certified
  • 100% Japanese 105'c Capacitors
  • Zero RPM Fan Mode
  • 135mm Cooling Fan
  • Fully Modular Cables

QuickFind: 874511

Mfr part code: CP-9020152-UK

£ 212.99  inc. vat

£ 177.49 ex. vat

More Info

Be Quiet Power Zone 750W Fully Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 135mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

QuickFind: 546365

Mfr part code: BN211

£ 96.11  inc. vat

£ 80.09 ex. vat

More Info

Corsair RM650i RMi Series 650 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 425 x 310 x 445 (mm)

QuickFind: 715152

Mfr part code: CP-9020081-UK

£ 117.66  inc. vat

£ 98.05 ex. vat

More Info

Corsair RM1000x High Performance Power Supply

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

QuickFind: 724685

Mfr part code: CP-9020094-UK

£ 146.66  inc. vat

£ 122.21 ex. vat

More Info

Evga 1000w G3 80+ Modular Gold

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

QuickFind: 767602

Mfr part code: 220-G3-1000-X3

£ 140.92  inc. vat

£151.98save £11.06

£ 117.43 ex. vat

£126.65save £9.22
More Info

Corsair SF750 750w 80 Plus Platinum High Performance SFX Power Supply

  • 80 Plus Platinum Certified
  • Japanese 105'c Capacitors
  • Zero RPM Fan Mode
  • 92mm PWM Low Noise Cooling Fan
  • Fully Modular Cables

QuickFind: 874512

Mfr part code: CP-9020186-UK

£ 126.95  inc. vat

£ 105.79 ex. vat

More Info

Corsair SF450 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: 882202

Mfr part code: CP-9020181-UK

£ 85.49  inc. vat

£91.06save £5.57

£ 71.24 ex. vat

£75.88save £4.64
More Info

Antec Earth Watts 380W Fully Wired 80+ Bronze Power Supply

  • Green Coloured PSU with a 80mm Silent Cooling Fan
  • Equipped with a Dual 12v Rail Delivering upto 32 Amps
  • Equipped with 1 PCI-E Connectors for Graphics Cards

QuickFind: 185183

Mfr part code: EA-380D GREEN

£ 45.34  inc. vat

£ 37.78 ex. vat

More Info

CISCO SYSTEMS PWR-C1-350WAC= Cisco - Power supply

  • 350W AC Config 1 power supply

QuickFind: 483999

Mfr part code: PWR-C1-350WAC=

£ 384.99  inc. vat

£ 320.82 ex. vat

Finance from per month.
( APR) representative

More Info

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

QuickFind: 620499

Mfr part code: BN226

£ 48.99  inc. vat

£ 40.82 ex. vat

More Info

Corsair HX1000i High Performance Series (1000 Watt) 80 Plus Platinum Atx Power Supply Unit

  • ZeroRPM mode for fanless operation at low loads
  • 140mm thermally controlled fluid dynamic bearing
  • 80 PLUS Platinum efficiency

QuickFind: 663410

Mfr part code: CP-9020074-UK

£ 204.99  inc. vat

£ 170.82 ex. vat

More Info

Fractal Design Edison M Series (650w) Power Supply Unit

  • 80PLUS Gold efficiency
  • 5 year warranty on the PSU
  • Compliant with the latest standards
  • High end capacitors
  • Silent, temperature-controlled 120mm FDB fan

QuickFind: 706453

Mfr part code: FD-PSU-ED1B-650W

£ 108.99  inc. vat

£ 90.82 ex. vat

More Info

BeQuiet Silent Wings Dark Power Pro 11 750W Power Supply

  • Black Coloured PSU with a 135mm Cooling Fan
  • Equipped with a Single 12v Rail
  • 80 Plus platinum

QuickFind: 728219

Mfr part code: BN252

£ 156.60  inc. vat

£ 130.50 ex. vat

More Info

Be Quiet! 850W Modular PSU - Dark Power Pro 11

  • Fluid 135mm SilentWings® 3 Fan
  • Equipped with a Single 12v Rail
  • 80 Plus Platinum
  • Modular Design
  • SLI/XFire Ready

QuickFind: 728220

Mfr part code: BN253

£ 175.49  inc. vat

£ 146.24 ex. vat

More Info

EVGA SuperNOVA 1300 G2 Power Supply

  • 80 PLUS Gold certified
  • Fully Modular to reduce clutter and improve airflow
  • NVIDIA SLI & AMD Crossfire Ready
  • Unbeatable 10 Year Warranty

QuickFind: 759090

Mfr part code: 120-G2-1300-X3

£ 190.41  inc. vat

£ 158.67 ex. vat

More Info
Showing 49 - 72 of 137 results
Grid List

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.

Learn more

The best PSUs for gaming