PC Power Supply Units (101 products)

It is essential you use the correct power supply for your computer. Whether you are upgrading, building a new set up, or have a broken supply, we have plenty of high-quality, low cost power supplies available at Ebuyer.

Read more about PC Power Supply Units

Showing 1 - 24 of 101 results
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Corsair RM850 850 Watt 80+ Gold Fully Modular PSU

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

£ 115.98  inc. vat

£ 96.65 ex. vat

0% Interest offers available

More Info

Aerocool Aero Bronze 550W PSU

  • Up to 90%+ efficiency with 80Plus Bronze 230V EU certified
  • Built-in premium 105°C Japanese main capacitors
  • 12cm high-pressure fan with optimized fan speed
  • DC-to-DC conversion circuit for higher efficiency

£ 29.75  inc. vat

£40.98save £11.23

£ 24.79 ex. vat

£34.15save £9.36
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

£ 86.93  inc. vat

£104.26save £17.33

£ 72.44 ex. vat

£86.88save £14.44
More Info

Corsair CV Series CV650 650W 80 Plus Bronze Non-Modular PSU Power Supply

  • Wattage: 650W
  • Non-Modular
  • 80 PLUS Bronze
  • 120mm Fan

£ 47.99  inc. vat

£ 39.99 ex. vat

More Info

Corsair RM850x 850W Modular 80+ Gold PSU

  • 4x Molex Connectors
  • 10x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 4+4+8-Pin CPU Power Connector
  • ATX Form Factor

£ 114.98  inc. vat

£ 95.81 ex. vat

0% Interest offers available

More Info

Thermaltake TR2 S 600W PSU

  • Ultra-Quiet 120mm Fan
  • Multiple Connectors
  • 80 Plus 230V Standard Certified and Kaby Lake-Ready
  • High Quality Components

£ 34.98  inc. vat

£46.98save £12.00

£ 29.15 ex. vat

£39.15save £10.00
More Info

Thermaltake TR2 S Series 700W Power Supply 80 Plus

  • Ultra-Quiet 120mm Fan
  • Multiple Connectors
  • 80 Plus 230V Standard Certified and Kaby Lake-Ready
  • High Quality Components

£ 44.98  inc. vat

£54.98save £10.00

£ 37.48 ex. vat

£45.81save £8.33
More Info

Corsair RM650 650 Watt 80+ Gold Fully Modular PSU

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

£ 83.18  inc. vat

£89.80save £6.62

£ 69.31 ex. vat

£74.83save £5.52
More Info

Corsair HX850 - 850 Watt Fully Modular PSU

  • 80 PLUS® Platinum efficiency
  • Zero RPM Fan Mode
  • Quiet, efficient operation
  • Easy Installation

£ 156.99  inc. vat

£185.99save £29.00

£ 130.82 ex. vat

£154.99save £24.17

0% Interest offers available

More Info

Aerocool Cylon 700w Semi-modular Psu 80+

  • Wattage: 700W
  • Semi-Modular
  • 80 PLUS White
  • 120mm Fan
  • 2 Year Warranty

£ 39.46  inc. vat

£45.24save £5.78

£ 32.88 ex. vat

£37.70save £4.82
More Info

Seasonic FOCUS GX 1000 Watt Full Modular 80+ Gold PSU/Power Supply

  • Full Modular
  • 80 PLUS Gold
  • SLI/CrossFire
  • Single Rail 83A
  • 120mm Fan

£ 149.99  inc. vat

£ 124.99 ex. vat

0% Interest offers available

More Info

Corsair CX-F RGB Series 750W 80 Plus Bronze Fully Modular PSU Power Supply

  • Wattage: 750W
  • Fully-Modular
  • 80 Plus Bronze
  • 120mm RGB Fan

£ 74.98  inc. vat

£80.49save £5.51

£ 62.48 ex. vat

£67.07save £4.59
More Info

Corsair 750W TX750M Gold Hybid Modular Power Supply

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

£ 80.00  inc. vat

£89.99save £9.99

£ 66.66 ex. vat

£74.99save £8.33
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

£ 124.98  inc. vat

£143.74save £18.76

£ 104.15 ex. vat

£119.78save £15.63

0% Interest offers available

More Info

Premium Braided 30cm PSU Exention Cable Kit - Red

  • High-quality, rugged, and routable modular 18AWG multi-color PSU...
  • High-density flexible protective sleeve for a stiff yet adaptable...
  • 2 Year Warranty

£ 9.65  inc. vat

£14.99save £5.34

£ 8.04 ex. vat

£12.49save £4.45
More Info

Seasonic Core Gold GM-500 500W 80+ Gold Modular Power Supply

  • High efficiency with 80 PLUS Gold certification
  • Powerful 41A single rail
  • Partial modular cable management with flat cables
  • 7 Year manufacturer's guarantee

£ 58.52  inc. vat

£67.98save £9.46

£ 48.76 ex. vat

£56.65save £7.89
More Info

Corsair CX650M Semi-Modular ATX Power Supply

  • 80 PLUS Bronze certified
  • Modular cable management Semi-Modular
  • 120mm thermally controlled fan
  • Five year warranty

£ 78.98  inc. vat

£88.26save £9.28

£ 65.81 ex. vat

£73.55save £7.74
More Info

EVGA 850 BQ Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • Fan Size / Bearing 140mm Teflon Nano-Steel Bearing
  • 5 Year Warranty

£ 88.49  inc. vat

£ 73.74 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

£ 99.99  inc. vat

£124.98save £24.99

£ 83.32 ex. vat

£104.15save £20.83

0% Interest offers available

More Info

CORSAIR CV Series CV450 - 450 Watt Power Supply

  • 80 PLUS Bronze Certified
  • Full Continuous Power
  • Low-Noise Cooling
  • Black Sleeving and Casing
  • Three-Year Warranty

£ 41.12  inc. vat

£ 34.26 ex. vat

More Info

Thermaltake Hamburg Pro RGB 550W 80+ Bronze

  • 550W 80+ Bronze
  • High Quality Japanese capacitor
  • 10 LED Lights including 256 Colors RGB Cycle
  • 120mm Fan for exceptional cooling

£ 35.16  inc. vat

£47.98save £12.82

£ 29.30 ex. vat

£39.98save £10.68
More Info

Thermaltake Litepower 450W PSU

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

£ 29.40  inc. vat

£ 24.50 ex. vat

More Info

Aerocool Aero Bronze 650W PSU

  • Up to 90%+ efficiency with 80Plus Bronze 230V EU certified
  • Built-in premium 105°C Japanese main capacitors
  • 12cm high-pressure fan with optimized fan speed
  • DC-to-DC conversion circuit for higher efficiency

£ 36.80  inc. vat

£48.98save £12.18

£ 30.66 ex. vat

£40.81save £10.15
More Info

Corsair CX-F RGB Series 650W 80 Plus Bronze Fully Modular PSU Power Supply - White

  • Wattage: 650W
  • Fully-Modular
  • 80 Plus Bronze
  • 120mm RGB Fan

£ 68.49  inc. vat

£84.02save £15.53

£ 57.07 ex. vat

£70.01save £12.94
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

£ 115.98  inc. vat

£ 96.65 ex. vat

0% Interest offers available

More Info

Aerocool Aero Bronze 550W PSU

  • Up to 90%+ efficiency with 80Plus Bronze 230V EU certified
  • Built-in premium 105°C Japanese main capacitors
  • 12cm high-pressure fan with optimized fan speed
  • DC-to-DC conversion circuit for higher efficiency

QuickFind: 975184

Mfr part code: ACPB-AR55AKC.11

£ 29.75  inc. vat

£40.98save £11.23

£ 24.79 ex. vat

£34.15save £9.36
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

£ 86.93  inc. vat

£104.26save £17.33

£ 72.44 ex. vat

£86.88save £14.44
More Info

Corsair CV Series CV650 650W 80 Plus Bronze Non-Modular PSU Power Supply

  • Wattage: 650W
  • Non-Modular
  • 80 PLUS Bronze
  • 120mm Fan

QuickFind: 1142543

Mfr part code: CP-9020236-UK

£ 47.99  inc. vat

£ 39.99 ex. vat

More Info

Corsair RM850x 850W Modular 80+ Gold PSU

  • 4x Molex Connectors
  • 10x SATA Connectors
  • 6x PCIe Connectors (6+2-Pin)
  • 4+4+8-Pin CPU Power Connector
  • ATX Form Factor

QuickFind: 1144842

Mfr part code: CP-9020200-UK

£ 114.98  inc. vat

£ 95.81 ex. vat

0% Interest offers available

More Info

Thermaltake TR2 S 600W PSU

  • Ultra-Quiet 120mm Fan
  • Multiple Connectors
  • 80 Plus 230V Standard Certified and Kaby Lake-Ready
  • High Quality Components

QuickFind: 788082

Mfr part code: PS-TRS-0600NPCWUK-2

£ 34.98  inc. vat

£46.98save £12.00

£ 29.15 ex. vat

£39.15save £10.00
More Info

Thermaltake TR2 S Series 700W Power Supply 80 Plus

  • Ultra-Quiet 120mm Fan
  • Multiple Connectors
  • 80 Plus 230V Standard Certified and Kaby Lake-Ready
  • High Quality Components

QuickFind: 788083

Mfr part code: PS-TRS-0700NPCWUK-2

£ 44.98  inc. vat

£54.98save £10.00

£ 37.48 ex. vat

£45.81save £8.33
More Info

Corsair RM650 650 Watt 80+ Gold Fully Modular PSU

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

QuickFind: 908646

Mfr part code: CP-9020194-UK

£ 83.18  inc. vat

£89.80save £6.62

£ 69.31 ex. vat

£74.83save £5.52
More Info

Corsair HX850 - 850 Watt Fully Modular PSU

  • 80 PLUS® Platinum efficiency
  • Zero RPM Fan Mode
  • Quiet, efficient operation
  • Easy Installation

QuickFind: 788620

Mfr part code: CP-9020138-UK

£ 156.99  inc. vat

£185.99save £29.00

£ 130.82 ex. vat

£154.99save £24.17

0% Interest offers available

More Info

Aerocool Cylon 700w Semi-modular Psu 80+

  • Wattage: 700W
  • Semi-Modular
  • 80 PLUS White
  • 120mm Fan
  • 2 Year Warranty

QuickFind: 958729

Mfr part code: ACPW-CM70AKC.11

£ 39.46  inc. vat

£45.24save £5.78

£ 32.88 ex. vat

£37.70save £4.82
More Info

Seasonic FOCUS GX 1000 Watt Full Modular 80+ Gold PSU/Power Supply

  • Full Modular
  • 80 PLUS Gold
  • SLI/CrossFire
  • Single Rail 83A
  • 120mm Fan

QuickFind: 1263269

Mfr part code: FOCUS-GX-1000

£ 149.99  inc. vat

£ 124.99 ex. vat

0% Interest offers available

More Info

Corsair CX-F RGB Series 750W 80 Plus Bronze Fully Modular PSU Power Supply

  • Wattage: 750W
  • Fully-Modular
  • 80 Plus Bronze
  • 120mm RGB Fan

QuickFind: 1125962

Mfr part code: CP-9020218-UK

£ 74.98  inc. vat

£80.49save £5.51

£ 62.48 ex. vat

£67.07save £4.59
More Info

Corsair 750W TX750M Gold Hybid Modular Power Supply

  • 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

£ 80.00  inc. vat

£89.99save £9.99

£ 66.66 ex. vat

£74.99save £8.33
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

£ 124.98  inc. vat

£143.74save £18.76

£ 104.15 ex. vat

£119.78save £15.63

0% Interest offers available

More Info

Premium Braided 30cm PSU Exention Cable Kit - Red

  • High-quality, rugged, and routable modular 18AWG multi-color PSU...
  • High-density flexible protective sleeve for a stiff yet adaptable...
  • 2 Year Warranty

QuickFind: 912960

Mfr part code: PSURED

£ 9.65  inc. vat

£14.99save £5.34

£ 8.04 ex. vat

£12.49save £4.45
More Info

Seasonic Core Gold GM-500 500W 80+ Gold Modular Power Supply

  • High efficiency with 80 PLUS Gold certification
  • Powerful 41A single rail
  • Partial modular cable management with flat cables
  • 7 Year manufacturer's guarantee

QuickFind: 919260

Mfr part code: CORE-GM-500

£ 58.52  inc. vat

£67.98save £9.46

£ 48.76 ex. vat

£56.65save £7.89
More Info

Corsair CX650M Semi-Modular ATX Power Supply

  • 80 PLUS Bronze certified
  • Modular cable management Semi-Modular
  • 120mm thermally controlled fan
  • Five year warranty

QuickFind: 743021

Mfr part code: CP-9020103-UK

£ 78.98  inc. vat

£88.26save £9.28

£ 65.81 ex. vat

£73.55save £7.74
More Info

EVGA 850 BQ Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • Fan Size / Bearing 140mm Teflon Nano-Steel Bearing
  • 5 Year Warranty

QuickFind: 756501

Mfr part code: 110-BQ-0850-V3

£ 88.49  inc. vat

£ 73.74 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

£ 99.99  inc. vat

£124.98save £24.99

£ 83.32 ex. vat

£104.15save £20.83

0% Interest offers available

More Info

CORSAIR CV Series CV450 - 450 Watt Power Supply

  • 80 PLUS Bronze Certified
  • Full Continuous Power
  • Low-Noise Cooling
  • Black Sleeving and Casing
  • Three-Year Warranty

QuickFind: 951101

Mfr part code: CP-9020209-UK

£ 41.12  inc. vat

£ 34.26 ex. vat

More Info

Thermaltake Hamburg Pro RGB 550W 80+ Bronze

  • 550W 80+ Bronze
  • High Quality Japanese capacitor
  • 10 LED Lights including 256 Colors RGB Cycle
  • 120mm Fan for exceptional cooling

QuickFind: 982574

Mfr part code: W0592RE

£ 35.16  inc. vat

£47.98save £12.82

£ 29.30 ex. vat

£39.98save £10.68
More Info

Thermaltake Litepower 450W PSU

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

QuickFind: 856008

Mfr part code: PS-LTP-0450NPCNUK-2

£ 29.40  inc. vat

£ 24.50 ex. vat

More Info

Aerocool Aero Bronze 650W PSU

  • Up to 90%+ efficiency with 80Plus Bronze 230V EU certified
  • Built-in premium 105°C Japanese main capacitors
  • 12cm high-pressure fan with optimized fan speed
  • DC-to-DC conversion circuit for higher efficiency

QuickFind: 975185

Mfr part code: ACPB-AR65AKC.11

£ 36.80  inc. vat

£48.98save £12.18

£ 30.66 ex. vat

£40.81save £10.15
More Info

Corsair CX-F RGB Series 650W 80 Plus Bronze Fully Modular PSU Power Supply - White

  • Wattage: 650W
  • Fully-Modular
  • 80 Plus Bronze
  • 120mm RGB Fan

QuickFind: 1125961

Mfr part code: CP-9020226-UK

£ 68.49  inc. vat

£84.02save £15.53

£ 57.07 ex. vat

£70.01save £12.94
More Info
Showing 1 - 24 of 101 results
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Power Supplies at Ebuyer

If your power supply does not provide enough power for your system, it can cause serious performance issues or system errors. Whether you are building your own PC, or need to replace a faulty power supply, it is important to work out the type and wattage of the power supply you need.

It is important to check the efficiency rating of your power supply; 80%+ efficiency PSUs are a better option, as they waste less electricity, and do not create as much heat inside your system. You should also consider whether you are looking for a modular or non-modular power supply this will impact the way you build your system, manage cables, and upgrade in the future.

How do I know which power supply I need for a computer?

Which power supply you should buy depends on the components in your computer, and what you use the system for. Generally speaking, you should aim for a power supply that delivers a wattage at least 40% greater than the wattage used by your hardware combined.

You will also need to consider the processes you use your computer for your system will work harder when running more demanding programs or games, and therefore will require more power. As a result, gamers and designers will need more headroom than those who use their computers for social media or admin tasks.

What is the power supply on a computer?

The power supply unit (PSU) in your computer converts alternating current (AC) from your plug socket into a continuous current (DC) to run the hardware in your computer. ItÃÆ'¢â‚¬â„¢s essentially the system that provides electricity to your set up, allowing it to power on. A low quality or under-powered PSU will cause erratic performance, and potentially damage your system.

What voltage is a PC power supply?

The power supply itself doesnÃÆ'¢â‚¬â„¢t have voltage ÃÆ'¢â‚¬â€œ it converts voltage from the plug socket into a low voltage direct current (DC). In Europe, this is usually around 220-240 volts, and the DC it is converted to will vary.