PC Computer Power Supply Units (33 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 33 results
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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

£ 40.65  inc. vat

£44.91save £4.26

£ 33.87 ex. vat

£37.42save £3.55
More Info

Aerocool Cylon 700w Semi-modular Psu 80+

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

£ 45.06  inc. vat

£ 37.55 ex. vat

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

  • 350W AC Config 1 power supply

£ 434.99  inc. vat

£ 362.49 ex. vat

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Thermaltake Litepower 450W PSU

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

£ 28.98  inc. vat

£ 24.15 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

Aerocool Cylon 700w 80+ Psu

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

£ 39.99  inc. vat

£ 33.32 ex. vat

More Info

Thermaltake Litepower 550W PSU

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

£ 31.97  inc. vat

£ 26.64 ex. vat

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 VS Series 350 Watt Power Supply

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

£ 34.49  inc. vat

£ 28.74 ex. vat

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Evga 500w 80+ White Series Psu

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

£ 42.99  inc. vat

£ 35.82 ex. vat

More Info

Aerocool Cylon 400W Fully Wired 80+ PSU/Power Supply

  • Fully Wired ATX PSU
  • 80PLUS White
  • Single Rail
  • 30A
  • 120mm Fan

£ 24.48  inc. vat

£ 20.40 ex. vat

More Info

Corsair HX750i 750 Watt Power Supply

  • 80 PLUS Platinum efficiency, delivering 92% energy efficiency at real...
  • ZeroRPM mode for fan-less operation at low loads and outstanding noise...

£ 140.00  inc. vat

£154.28save £14.28

£ 116.66 ex. vat

£128.56save £11.90
More Info

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

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

£ 158.49  inc. vat

£ 132.07 ex. vat

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EVGA Supernova 1200W Fully Modular 80+ Platinum Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with 2 x 12v Rails Delivering upto 99.9 Amps per Rail...
  • Equipped with 6 x 8pin & 2 x 6pin PCI-E Connectors for Graphics Cards...

£ 335.99  inc. vat

£ 279.99 ex. vat

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Thermaltake Toughpower 850 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 850 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

£ 203.37  inc. vat

£ 169.47 ex. vat

More Info

Thermaltake Toughpower 1200 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 1200 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

£ 284.60  inc. vat

£ 237.16 ex. vat

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Seasonic Focus PX-650 650W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 119.96  inc. vat

£ 99.96 ex. vat

More Info

Be Quiet! 550W Modular PSU - Dark Power Pro 11

  • Equipped with a Single 12v Rail
  • Quiet SilentWings 3 fan
  • Hybrid Modular Design
  • 80 Plus platinum

£ 112.98  inc. vat

£ 94.15 ex. vat

More Info

Corsair HX1200 - 1200 Watt Fully Modular

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

£ 179.49  inc. vat

£ 149.57 ex. vat

More Info

Be Quiet! 650W Modular PSU - BN251 Dark Power Pro 11

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

£ 145.43  inc. vat

£ 121.19 ex. vat

More Info

Be Quiet! 1000W 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

£ 209.68  inc. vat

£ 174.73 ex. vat

More Info

EVGA SuperNOVA 1000W P2 Fully Modular Power Supply

  • 80 PLUS Platinum certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Fully Modular to reduce clutter and improve airflow

£ 224.99  inc. vat

£ 187.49 ex. vat

More Info

Thermaltake Toughpower 1050 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 1050 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

£ 228.63  inc. vat

£ 190.52 ex. vat

More Info

Seasonic Focus PX-550 550W 80+ Platinum Modular Power Supply

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 99.99  inc. vat

£116.48save £16.49

£ 83.32 ex. vat

£97.06save £13.74
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

£ 40.65  inc. vat

£44.91save £4.26

£ 33.87 ex. vat

£37.42save £3.55
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

£ 45.06  inc. vat

£ 37.55 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=

£ 434.99  inc. vat

£ 362.49 ex. vat

Finance from per month.
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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

£ 28.98  inc. vat

£ 24.15 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

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

£ 39.99  inc. vat

£ 33.32 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

£ 31.97  inc. vat

£ 26.64 ex. vat

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 VS Series 350 Watt Power Supply

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

QuickFind: 726364

Mfr part code: CP-9020095-UK

£ 34.49  inc. vat

£ 28.74 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

£ 42.99  inc. vat

£ 35.82 ex. vat

More Info

Aerocool Cylon 400W Fully Wired 80+ PSU/Power Supply

  • Fully Wired ATX PSU
  • 80PLUS White
  • Single Rail
  • 30A
  • 120mm Fan

QuickFind: 958727

Mfr part code: ACPW-CN40AKC.11

£ 24.48  inc. vat

£ 20.40 ex. vat

More Info

Corsair HX750i 750 Watt Power Supply

  • 80 PLUS Platinum efficiency, delivering 92% energy efficiency at real...
  • ZeroRPM mode for fan-less operation at low loads and outstanding noise...

QuickFind: 659514

Mfr part code: CP-9020072-UK

£ 140.00  inc. vat

£154.28save £14.28

£ 116.66 ex. vat

£128.56save £11.90
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

£ 158.49  inc. vat

£ 132.07 ex. vat

More Info

EVGA Supernova 1200W Fully Modular 80+ Platinum Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with 2 x 12v Rails Delivering upto 99.9 Amps per Rail...
  • Equipped with 6 x 8pin & 2 x 6pin PCI-E Connectors for Graphics Cards...

QuickFind: 655997

Mfr part code: 220-P2-1200-X3

£ 335.99  inc. vat

£ 279.99 ex. vat

Finance from per month.
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More Info

Thermaltake Toughpower 850 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 850 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

QuickFind: 914024

Mfr part code: PS-TPD-0850F3FAPE-1

£ 203.37  inc. vat

£ 169.47 ex. vat

More Info

Thermaltake Toughpower 1200 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 1200 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

QuickFind: 914027

Mfr part code: PS-TPD-1200F3FAPE-1

£ 284.60  inc. vat

£ 237.16 ex. vat

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More Info

Seasonic Focus PX-650 650W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919251

Mfr part code: FOCUS-PX-650

£ 119.96  inc. vat

£ 99.96 ex. vat

More Info

Be Quiet! 550W Modular PSU - Dark Power Pro 11

  • Equipped with a Single 12v Rail
  • Quiet SilentWings 3 fan
  • Hybrid Modular Design
  • 80 Plus platinum

QuickFind: 728215

Mfr part code: BN250

£ 112.98  inc. vat

£ 94.15 ex. vat

More Info

Corsair HX1200 - 1200 Watt Fully Modular

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

QuickFind: 788622

Mfr part code: CP-9020140-UK

£ 179.49  inc. vat

£ 149.57 ex. vat

More Info

Be Quiet! 650W Modular PSU - BN251 Dark Power Pro 11

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

QuickFind: 728218

Mfr part code: BN251

£ 145.43  inc. vat

£ 121.19 ex. vat

More Info

Be Quiet! 1000W 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: 728222

Mfr part code: BN254

£ 209.68  inc. vat

£ 174.73 ex. vat

More Info

EVGA SuperNOVA 1000W P2 Fully Modular Power Supply

  • 80 PLUS Platinum certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Fully Modular to reduce clutter and improve airflow

QuickFind: 747638

Mfr part code: 220-P2-1000-X3

£ 224.99  inc. vat

£ 187.49 ex. vat

More Info

Thermaltake Toughpower 1050 Watt Full Modular 80+ Platinum ARGB PSU/Power Supply

  • 1050 W 80 PLUS Platinum
  • 1 x 140mm w/ Addressable RGB LEDs
  • 150 x 86 x 180 (WxHxD)

QuickFind: 914025

Mfr part code: PS-TPD-1050F3FAPE-1

£ 228.63  inc. vat

£ 190.52 ex. vat

More Info

Seasonic Focus PX-550 550W 80+ Platinum Modular Power Supply

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919252

Mfr part code: FOCUS-PX-550

£ 99.99  inc. vat

£116.48save £16.49

£ 83.32 ex. vat

£97.06save £13.74
More Info
Showing 1 - 24 of 33 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.