PC Computer Power Supply Units (24 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 24 results
Grid List
  • 1

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

£ 64.62  inc. vat

£ 53.85 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

£ 100.49  inc. vat

£ 83.74 ex. vat

More Info

Corsair 650W TX650M Gold Hybid Modular Power Supply/PSU

  • 650W Corsair TX-M Series TX650M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail
  • 51A + 12V, 120mm Fan

£ 84.99  inc. vat

£ 70.82 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

£ 117.99  inc. vat

£ 98.32 ex. vat

More Info

Corsair CXM 750W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

£ 91.49  inc. vat

£ 76.24 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...

£ 153.99  inc. vat

£ 128.32 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

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

£ 84.99  inc. vat

£ 70.82 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

£ 209.14  inc. vat

£ 174.28 ex. vat

More Info

Corsair HX1000 1000W 80+ Platinum Fully Modular Power Supply

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

£ 184.49  inc. vat

£ 153.74 ex. vat

More Info

Corsair SF Series 600 Watt 80 PLUS Gold Certified High Performance SFX PSU

  • 600 Watts SF Series
  • Fanless mode Yes
  • SFX Form Factor
  • 80 PLUS Gold certified
  • Zero RPM Fan Mode

£ 108.08  inc. vat

£ 90.06 ex. vat

More Info

Corsair 750W CX750 Bronze ATX Power Supply/PSU

  • 750W Corsair CX Series CX750
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 62.5A +12V, 140mm Fan

£ 91.98  inc. vat

£ 76.65 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

£ 97.14  inc. vat

£ 80.95 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

£ 170.97  inc. vat

£ 142.47 ex. vat

More Info

Corsair HX1200 - 1200 Watt Fully Modular

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

£ 203.99  inc. vat

£ 169.99 ex. vat

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

£ 140.49  inc. vat

£ 117.07 ex. vat

More Info

Corsair HX850 - 850 Watt Fully Modular PSU

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

£ 153.33  inc. vat

£ 127.77 ex. vat

More Info

Corsair VS450 450 W Active PFC 80 PLUS Certified Power

  • 80 PLUS efficiency: Runs cooler and uses less power than non-certified...
  • 3-year warranty: Backed by CORSAIR's legendary technical support and...

£ 42.99  inc. vat

£ 35.82 ex. vat

More Info

Corsair TX850M 80 PLUS Bronze Certified 850 Watts

  • • 8 Molex Connectors
  • • 8 SATA Connectors
  • • 4 PCI-E Connectors (6+2-Pin)
  • • 0 Floppy Connectors
  • • 4 + 4-Pin CPU Power Connector

£ 109.98  inc. vat

£ 91.65 ex. vat

More Info

Corsair HX750 - 750 Watt Fully Modular PSU

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

£ 156.84  inc. vat

£ 130.70 ex. vat

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

£ 413.99  inc. vat

£ 344.99 ex. vat

Finance from per month.
( APR) representative

More Info

Corsair AX850 850 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

£ 178.47  inc. vat

£ 148.72 ex. vat

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

£ 113.99  inc. vat

£ 94.99 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

£ 256.47  inc. vat

£ 213.72 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

£ 64.62  inc. vat

£ 53.85 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

£ 100.49  inc. vat

£ 83.74 ex. vat

More Info

Corsair 650W TX650M Gold Hybid Modular Power Supply/PSU

  • 650W Corsair TX-M Series TX650M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail
  • 51A + 12V, 120mm Fan

QuickFind: 782057

Mfr part code: CP-9020132-UK

£ 84.99  inc. vat

£ 70.82 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

£ 117.99  inc. vat

£ 98.32 ex. vat

More Info

Corsair CXM 750W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62 Amps
  • Equipped with 2 PCI-E Connectors for Graphics Cards

QuickFind: 429987

Mfr part code: CP-9020061-UK

£ 91.49  inc. vat

£ 76.24 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

£ 153.99  inc. vat

£ 128.32 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

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

£ 84.99  inc. vat

£ 70.82 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

£ 209.14  inc. vat

£ 174.28 ex. vat

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

£ 184.49  inc. vat

£ 153.74 ex. vat

More Info

Corsair SF Series 600 Watt 80 PLUS Gold Certified High Performance SFX PSU

  • 600 Watts SF Series
  • Fanless mode Yes
  • SFX Form Factor
  • 80 PLUS Gold certified
  • Zero RPM Fan Mode

QuickFind: 745622

Mfr part code: CP-9020105-UK

£ 108.08  inc. vat

£ 90.06 ex. vat

More Info

Corsair 750W CX750 Bronze ATX Power Supply/PSU

  • 750W Corsair CX Series CX750
  • 80PLUS Bronze
  • Fully Wired
  • Single Rail
  • 62.5A +12V, 140mm Fan

QuickFind: 782055

Mfr part code: CP-9020123-UK

£ 91.98  inc. vat

£ 76.65 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

£ 97.14  inc. vat

£ 80.95 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

£ 170.97  inc. vat

£ 142.47 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

£ 203.99  inc. vat

£ 169.99 ex. vat

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

£ 140.49  inc. vat

£ 117.07 ex. vat

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

£ 153.33  inc. vat

£ 127.77 ex. vat

More Info

Corsair VS450 450 W Active PFC 80 PLUS Certified Power

  • 80 PLUS efficiency: Runs cooler and uses less power than non-certified...
  • 3-year warranty: Backed by CORSAIR's legendary technical support and...

QuickFind: 835000

Mfr part code: CP-9020170-UK

£ 42.99  inc. vat

£ 35.82 ex. vat

More Info

Corsair TX850M 80 PLUS Bronze Certified 850 Watts

  • • 8 Molex Connectors
  • • 8 SATA Connectors
  • • 4 PCI-E Connectors (6+2-Pin)
  • • 0 Floppy Connectors
  • • 4 + 4-Pin CPU Power Connector

QuickFind: 782059

Mfr part code: CP-9020130-UK

£ 109.98  inc. vat

£ 91.65 ex. vat

More Info

Corsair HX750 - 750 Watt Fully Modular PSU

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

QuickFind: 788619

Mfr part code: CP-9020137-UK

£ 156.84  inc. vat

£ 130.70 ex. vat

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

£ 413.99  inc. vat

£ 344.99 ex. vat

Finance from per month.
( APR) representative

More Info

Corsair AX850 850 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: 874510

Mfr part code: CP-9020151-UK

£ 178.47  inc. vat

£ 148.72 ex. vat

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

£ 113.99  inc. vat

£ 94.99 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

£ 256.47  inc. vat

£ 213.72 ex. vat

More Info
Showing 24 results
Grid List
  • 1

Return to top

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.