PC Computer Power Supply Units (92 products)

It's essential you use the correct power supply for your computer. Whether you're 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 Computer Power Supply Units

Showing 1 - 24 of 92 results
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CORSAIR CV Series CV650 - 650 Watt Power Supply

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

£ 51.99  inc. vat

£60.38save £8.39

£ 43.32 ex. vat

£50.31save £6.99
More Info

CORSAIR CV Series CV550 - 550 Watt Power Supply

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

£ 44.99  inc. vat

£50.00save £5.01

£ 37.49 ex. vat

£41.66save £4.17
More Info

Aerocool Integrator 700W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • 12cm Silent Fan
  • 700w 80+ Efficiency
  • Dimensions 150mm x 85mm x 140mm (W x H x D)

£ 41.85  inc. vat

£44.51save £2.66

£ 34.87 ex. vat

£37.09save £2.22
More Info

Aerocool Cylon 500W Power Supply 80 Plus

  • 80Plus 230V EU Standard Certified for up to 85%+ efficiency
  • Silent 12cm black fan with optimized thermal fan speed control...

£ 29.98  inc. vat

£36.98save £7.00

£ 24.98 ex. vat

£30.81save £5.83
More Info

Thermaltake Litepower 650W PSU

  • 80 Plus Efficiency
  • Ultra-Quiet Fan
  • Cables with High Flexibility
  • High-Quality Components

£ 41.99  inc. vat

£ 34.99 ex. vat

More Info

Thermaltake Litepower 550W PSU

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

£ 37.98  inc. vat

£ 31.65 ex. vat

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

£ 39.95  inc. vat

£46.48save £6.53

£ 33.29 ex. vat

£38.73save £5.44
More Info

Aerocool Integrator 500W Power Supply, 80 Plus Bronze

  • Wattage: 500W
  • Non-Modular
  • 80 PLUS Bronze
  • 120mm
  • ECO friendly

£ 32.99  inc. vat

£37.72save £4.73

£ 27.49 ex. vat

£31.43save £3.94
More Info

Straight Power 11 650w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency (up to 93%)
  • Powerful multi-GPU support
  • Japanese 105°C-rated capacitors ensure stability and reliability...

£ 93.99  inc. vat

£105.88save £11.89

£ 78.32 ex. vat

£88.23save £9.91
More Info

Corsair AX1600i 1600W Modular 80+ Titanium PSU

  • 9x Molex Connectors
  • 16x SATA Connectors
  • 10x PCIe Connectors (6+2-Pin)
  • Modular Cable System
  • ATX Form Factor

£ 399.98  inc. vat

£421.64save £21.66

£ 333.31 ex. vat

£351.36save £18.05

Finance from per month.
( APR) representative

More Info

Straight Power 11 750w - 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

£ 119.99  inc. vat

£ 99.99 ex. vat

0% Interest offers available

More Info

Xenta 500W 80+ Power Supply Unit 230V with 12cm Fan

  • 500w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

£ 31.98  inc. vat

£ 26.65 ex. vat

More Info

Premium Braided 30cm PSU Extension Cable Kit - Black

  • 24pin
  • 6pin
  • 4+4pin
  • 6+2pin

£ 14.94  inc. vat

£ 12.45 ex. vat

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

£ 76.62  inc. vat

£ 63.85 ex. vat

More Info

Xenta 400W 80+ Power Supply Unit 230V with 12cm Fan

  • 400w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

£ 28.98  inc. vat

£ 24.15 ex. vat

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

£ 64.98  inc. vat

£ 54.15 ex. vat

More Info

Xenta 600W 80+ Power Supply Unit 230V with 12cm Fan

  • 600w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

£ 34.98  inc. vat

£35.98save £1.00

£ 29.15 ex. vat

£29.98save £0.83
More Info

Aerocool Cylon 700w 80+ Psu

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

£ 38.99  inc. vat

£42.39save £3.40

£ 32.49 ex. vat

£35.32save £2.83
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

£ 78.99  inc. vat

£88.77save £9.78

£ 65.82 ex. vat

£73.97save £8.15
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

£ 51.60  inc. vat

£63.99save £12.39

£ 43.00 ex. vat

£53.32save £10.32
More Info

Adata XPG CORE REACTOR 750W Modular 80+ Gold PSU

  • 750W 80+ Gold
  • 4x Molex Connectors
  • 12x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • Modular Cable System

£ 104.99  inc. vat

£ 87.49 ex. vat

0% Interest offers available

More Info

Aerocool Integrator 600W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • 12cm Silent Fan
  • 600w 80+ Efficiency
  • Dimensions 150mm x 85mm x 140mm (WxHxD)

£ 36.98  inc. vat

£38.99save £2.01

£ 30.81 ex. vat

£32.49save £1.68
More Info

Be Quiet! 600W System Power 9 PSU

  • Rock-solid stability with two strong 12V-rails
  • DC-to-DC technology for tight voltage regulation
  • Multi-GPU support with four PCIe connectors
  • 80PLUS® Bronze efficiency (up to 89%

£ 61.49  inc. vat

£67.37save £5.88

£ 51.24 ex. vat

£56.14save £4.90
More Info

Aerocool Aero Bronze 750W 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

£ 68.93  inc. vat

£ 57.44 ex. vat

More Info

CORSAIR CV Series CV650 - 650 Watt Power Supply

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

QuickFind: 951103

Mfr part code: CP-9020211-UK

£ 51.99  inc. vat

£60.38save £8.39

£ 43.32 ex. vat

£50.31save £6.99
More Info

CORSAIR CV Series CV550 - 550 Watt Power Supply

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

QuickFind: 951102

Mfr part code: CP-9020210-UK

£ 44.99  inc. vat

£50.00save £5.01

£ 37.49 ex. vat

£41.66save £4.17
More Info

Aerocool Integrator 700W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • 12cm Silent Fan
  • 700w 80+ Efficiency
  • Dimensions 150mm x 85mm x 140mm (W x H x D)

QuickFind: 713439

Mfr part code: ACPB-IT70AKC.12

£ 41.85  inc. vat

£44.51save £2.66

£ 34.87 ex. vat

£37.09save £2.22
More Info

Aerocool Cylon 500W Power Supply 80 Plus

  • 80Plus 230V EU Standard Certified for up to 85%+ efficiency
  • Silent 12cm black fan with optimized thermal fan speed control...

QuickFind: 964797

Mfr part code: ACPW-CN50AKC.11

£ 29.98  inc. vat

£36.98save £7.00

£ 24.98 ex. vat

£30.81save £5.83
More Info

Thermaltake Litepower 650W PSU

  • 80 Plus Efficiency
  • Ultra-Quiet Fan
  • Cables with High Flexibility
  • High-Quality Components

QuickFind: 856009

Mfr part code: PS-LTP-0650NPCN UK-2

£ 41.99  inc. vat

£ 34.99 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

£ 37.98  inc. vat

£ 31.65 ex. vat

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

£ 39.95  inc. vat

£46.48save £6.53

£ 33.29 ex. vat

£38.73save £5.44
More Info

Aerocool Integrator 500W Power Supply, 80 Plus Bronze

  • Wattage: 500W
  • Non-Modular
  • 80 PLUS Bronze
  • 120mm
  • ECO friendly

QuickFind: 989985

Mfr part code: ACPB-IT50AKC.11

£ 32.99  inc. vat

£37.72save £4.73

£ 27.49 ex. vat

£31.43save £3.94
More Info

Straight Power 11 650w - 80plus Gold Power Supply

  • Virtually inaudible SilentWings 3 135mm fan
  • 80PLUS® Gold efficiency (up to 93%)
  • Powerful multi-GPU support
  • Japanese 105°C-rated capacitors ensure stability and reliability...

QuickFind: 826246

Mfr part code: BN282

£ 93.99  inc. vat

£105.88save £11.89

£ 78.32 ex. vat

£88.23save £9.91
More Info

Corsair AX1600i 1600W Modular 80+ Titanium PSU

  • 9x Molex Connectors
  • 16x SATA Connectors
  • 10x PCIe Connectors (6+2-Pin)
  • Modular Cable System
  • ATX Form Factor

QuickFind: 843896

Mfr part code: CP-9020087-UK

£ 399.98  inc. vat

£421.64save £21.66

£ 333.31 ex. vat

£351.36save £18.05

Finance from per month.
( APR) representative

More Info

Straight Power 11 750w - 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: 826248

Mfr part code: BN283

£ 119.99  inc. vat

£ 99.99 ex. vat

0% Interest offers available

More Info

Xenta 500W 80+ Power Supply Unit 230V with 12cm Fan

  • 500w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

QuickFind: 966445

Mfr part code: XEN-500W

£ 31.98  inc. vat

£ 26.65 ex. vat

More Info

Premium Braided 30cm PSU Extension Cable Kit - Black

  • 24pin
  • 6pin
  • 4+4pin
  • 6+2pin

QuickFind: 912961

Mfr part code: PSUBLACK

£ 14.94  inc. vat

£ 12.45 ex. vat

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

£ 76.62  inc. vat

£ 63.85 ex. vat

More Info

Xenta 400W 80+ Power Supply Unit 230V with 12cm Fan

  • 400w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

QuickFind: 966444

Mfr part code: XEN-400W

£ 28.98  inc. vat

£ 24.15 ex. vat

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

£ 64.98  inc. vat

£ 54.15 ex. vat

More Info

Xenta 600W 80+ Power Supply Unit 230V with 12cm Fan

  • 600w
  • 12cm Low Noise Fan
  • 80+ Efficiency
  • APFC
  • 3-Pin UK AC adaptor Included

QuickFind: 966446

Mfr part code: XEN - 600W

£ 34.98  inc. vat

£35.98save £1.00

£ 29.15 ex. vat

£29.98save £0.83
More Info

Aerocool Cylon 700w 80+ Psu

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

QuickFind: 958728

Mfr part code: ACPW-CN70AKC.11

£ 38.99  inc. vat

£42.39save £3.40

£ 32.49 ex. vat

£35.32save £2.83
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

£ 78.99  inc. vat

£88.77save £9.78

£ 65.82 ex. vat

£73.97save £8.15
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

£ 51.60  inc. vat

£63.99save £12.39

£ 43.00 ex. vat

£53.32save £10.32
More Info

Adata XPG CORE REACTOR 750W Modular 80+ Gold PSU

  • 750W 80+ Gold
  • 4x Molex Connectors
  • 12x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • Modular Cable System

QuickFind: 990077

Mfr part code: XPG CORE REACTOR 750

£ 104.99  inc. vat

£ 87.49 ex. vat

0% Interest offers available

More Info

Aerocool Integrator 600W 80+ Certified PSU 12cm Black Fan Active PFC TW Caps UK Cable

  • 12cm Silent Fan
  • 600w 80+ Efficiency
  • Dimensions 150mm x 85mm x 140mm (WxHxD)

QuickFind: 713436

Mfr part code: ACP-I600HG

£ 36.98  inc. vat

£38.99save £2.01

£ 30.81 ex. vat

£32.49save £1.68
More Info

Be Quiet! 600W System Power 9 PSU

  • Rock-solid stability with two strong 12V-rails
  • DC-to-DC technology for tight voltage regulation
  • Multi-GPU support with four PCIe connectors
  • 80PLUS® Bronze efficiency (up to 89%

QuickFind: 859749

Mfr part code: BN247

£ 61.49  inc. vat

£67.37save £5.88

£ 51.24 ex. vat

£56.14save £4.90
More Info

Aerocool Aero Bronze 750W 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: 975186

Mfr part code: ACPB-AR75AKC.11

£ 68.93  inc. vat

£ 57.44 ex. vat

More Info
Showing 1 - 24 of 92 results
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If your power supply doesn't provide enough power for your system, it can cause serious performance issues or system errors. Whether you're building your own PC, or need to replace a faulty power supply, it's important to work out the type and wattage of the power supply you need.

It's important to check the efficiency rating of your power supply; 80%+ efficiency PSUs are a better option, as they waste less electricity, and don't create as much heat inside your system. You should also consider whether you're 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'll 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. It'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 doesn't have voltage - 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.