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PC Computer Power Supply Units (127)

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Coolermaster Masterwatt Lite V2 400w PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230v PSU

£ 28.74  inc. vat

£31.55save £2.81

£23.95 ex. vat

£26.29save £2.34
Free Delivery Corsair HX1000i High Performance Series (1000 Watt) 80 Plus Platinum Atx Power Supply Unit

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

£ 167.99  inc. vat

£194.99save £27.00

£139.99 ex. vat

£162.49save £22.50
Free Delivery Coolermaster GM-Series 650W Semi Modular 80+ Bronze Power Supply

Coolermaster GM-Series 650W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120 Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 52 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£ 60.68  inc. vat

£64.98save £4.30

£50.56 ex. vat

£54.15save £3.59
Free Delivery Corsair CXM 750W Semi Modular 80+ Bronze Power Supply

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

£ 73.98  inc. vat

£88.46save £14.48

£61.65 ex. vat

£73.71save £12.06
Free Delivery Corsair HX750i 750 Watt Power Supply

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...

£ 123.99  inc. vat

£103.32 ex. vat

Free Delivery EVGA 750w G3 80+ Modular Gold

EVGA 750w G3 80+ Modular Gold

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

£ 112.97  inc. vat

£119.76save £6.79

£94.14 ex. vat

£99.80save £5.66
Free Delivery Corsair RM1000x High Performance Power Supply

Corsair RM1000x High Performance Power Supply

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

£ 140.32  inc. vat

£116.93 ex. vat

Free Delivery Corsair HX1200 - 1200 Watt Fully Modular

Corsair HX1200 - 1200 Watt Fully Modular

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

£ 179.34  inc. vat

£190.68save £11.34

£149.45 ex. vat

£158.90save £9.45
Free Delivery EVGA SuperNOVA 850 G3 Power Supply

EVGA SuperNOVA 850 G3 Power Supply

  • 80 Plus Gold
  • Fully Modular
  • SLI / Crossfire Ready
  • Highest quality Japanese capacitors
  • 10 Year Warranty

£ 140.99  inc. vat

£117.49 ex. vat

EVGA 450W BT 80+ Bronze PSU

  • Single +12V Rail
  • Continuous Power
  • Bronze Rated Efficiency
  • Heavy Duty Protections

£ 39.03  inc. vat

£44.44save £5.41

£32.52 ex. vat

£37.03save £4.51

TR2 S Series 500W Power Supply 80 Plus Certified Active

  • Ultra Quiet 120mm Fan
  • Multiple Connectors
  • 80 PLUS 230V Standard Certified
  • Haswell Ready
  • High-Quality Components

£ 31.94  inc. vat

£26.61 ex. vat

Free Delivery EVGA 1000 GQ Modular Gold Rated 80+ Power Supply

EVGA 1000 GQ Modular Gold Rated 80+ Power Supply

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

£ 140.62  inc. vat

£161.31save £20.69

£117.18 ex. vat

£134.42save £17.24

Aerocool Integrator 850W PSU

  • ATX12V Ver.2.4
  • 80Plus Bronze
  • 2 PCIe 6+2pin for high-end VGA
  • 7 SATA for huge storage
  • 12cm silent cooling fan

£ 47.99  inc. vat

£39.99 ex. vat

Free Delivery Corsair TX550M 550W 80 Plus Gold Power Supply

Corsair TX550M 550W 80 Plus Gold Power Supply

  • 550W Corsair TX-M Series TX550M PSU
  • 80PLUS Gold
  • Hybrid Modular, Single Rail
  • 43A + 12V, 120mm Fan
  • ATX PSU

£ 69.06  inc. vat

£57.55 ex. vat

Free Delivery EVGA 650 GQ Modular Gold Rated 80+ Power Supply

EVGA 650 GQ Modular Gold Rated 80+ Power Supply

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

£ 75.03  inc. vat

£62.52 ex. vat

Free Delivery Corsair 650W CX650 Bronze ATX Power Supply/PSU

Corsair 650W CX650 Bronze ATX Power Supply/PSU

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

£ 64.48  inc. vat

£53.73 ex. vat

Free Delivery EVGA 650W G2 Fully Modular 80+ PSU

EVGA 650W G2 Fully Modular 80+ PSU

  • Single +12V Rail
  • LLC Resonant Circuit layout
  • Fully Modular
  • Double Ball Bearing Fan
  • Gold Rated Efficiency

£ 102.26  inc. vat

£85.21 ex. vat

Free Delivery Cooler Master V750W Fully Modular 80 Plus Gold Power Supply

Cooler Master V750W Fully Modular 80 Plus Gold Power Supply

  • Form Factor ATX 12V v2.31
  • Cooler Master's exclusive Silencio FP fan technology enhances...
  • Fully modular, flat cable design for better cable management

£ 115.98  inc. vat

£96.65 ex. vat

Be Quiet! 400W PSU - BN272 Pure Power 10

  • 400 Watts of continuous power
  • 80PLUS® Silver certification
  • Exceptionally quiet operation
  • Stable operation

£ 46.49  inc. vat

£38.74 ex. vat

Free Delivery be quiet! 600W Pure Power 10 CM Semi Modular PSU

be quiet! 600W Pure Power 10 CM Semi Modular PSU

  • Exceptionally quiet
  • 80PLUS® Silver certification
  • Easy-to-use flat drives and PCIe cables
  • Two 12V-rails and up to four PCI-express connectors

£ 71.69  inc. vat

£77.98save £6.29

£59.74 ex. vat

£64.98save £5.24
Free Delivery Corsair TX850M  80 PLUS Bronze Certified 850 Watts

Corsair TX850M 80 PLUS Bronze Certified 850 Watts

£ 105.99  inc. vat

£88.32 ex. vat

Free Delivery Riotoro Onyx - PSU 750W +80 Bronze UK Version Semi Modular

Riotoro Onyx - PSU 750W +80 Bronze UK Version Semi Modular

  • 80 Plus Bronze Certified
  • Semi-Modular
  • Flat Cables Reduce Clutter & Airflow
  • Thermally Controlled Fan
  • 3 Year Warranty

£ 59.96  inc. vat

£49.96 ex. vat

Free Delivery EVGA Supernova 850w PSU

EVGA Supernova 850w PSU

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

£ 92.12  inc. vat

£114.50save £22.38

£76.76 ex. vat

£95.41save £18.65

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...

£ 36.99  inc. vat

£30.82 ex. vat

Coolermaster Masterwatt Lite V2 400w PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230v PSU

£ 28.74  inc. vat

£31.55save £2.81

£23.95 ex. vat

£26.29save £2.34
View Product

QuickFind: 828324   |   Mfr part code: MPX-4001-ACABW-KS

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

£ 167.99  inc. vat

£194.99save £27.00

£139.99 ex. vat

£162.49save £22.50
View Product

QuickFind: 663410   |   Mfr part code: CP-9020074-UK

Coolermaster GM-Series 650W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 120 Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 52 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£ 60.68  inc. vat

£64.98save £4.30

£50.56 ex. vat

£54.15save £3.59
View Product

QuickFind: 584149   |   Mfr part code: RS650-AMAAB1-UK

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

£ 73.98  inc. vat

£88.46save £14.48

£61.65 ex. vat

£73.71save £12.06
View Product

QuickFind: 429987   |   Mfr part code: CP-9020061-UK

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...

£ 123.99  inc. vat

£103.32 ex. vat

View Product

QuickFind: 659514   |   Mfr part code: CP-9020072-UK

EVGA 750w G3 80+ Modular Gold

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

£ 112.97  inc. vat

£119.76save £6.79

£94.14 ex. vat

£99.80save £5.66
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QuickFind: 767601   |   Mfr part code: 220-G3-0750-X3

Corsair RM1000x High Performance Power Supply

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

£ 140.32  inc. vat

£116.93 ex. vat

View Product

QuickFind: 724685   |   Mfr part code: CP-9020094-UK

Corsair HX1200 - 1200 Watt Fully Modular

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

£ 179.34  inc. vat

£190.68save £11.34

£149.45 ex. vat

£158.90save £9.45
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QuickFind: 788622   |   Mfr part code: CP-9020140-UK

EVGA SuperNOVA 850 G3 Power Supply

  • 80 Plus Gold
  • Fully Modular
  • SLI / Crossfire Ready
  • Highest quality Japanese capacitors
  • 10 Year Warranty

£ 140.99  inc. vat

£117.49 ex. vat

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QuickFind: 769000   |   Mfr part code: 220-G3-0850-X3

EVGA 450W BT 80+ Bronze PSU

  • Single +12V Rail
  • Continuous Power
  • Bronze Rated Efficiency
  • Heavy Duty Protections

£ 39.03  inc. vat

£44.44save £5.41

£32.52 ex. vat

£37.03save £4.51
View Product

QuickFind: 804904   |   Mfr part code: 100-BT-0450-K3

TR2 S Series 500W Power Supply 80 Plus Certified Active

  • Ultra Quiet 120mm Fan
  • Multiple Connectors
  • 80 PLUS 230V Standard Certified
  • Haswell Ready
  • High-Quality Components

£ 31.94  inc. vat

£26.61 ex. vat

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QuickFind: 774818   |   Mfr part code: TRS-0500P-2

EVGA 1000 GQ Modular Gold Rated 80+ Power Supply

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

£ 140.62  inc. vat

£161.31save £20.69

£117.18 ex. vat

£134.42save £17.24
View Product

QuickFind: 730233   |   Mfr part code: 210-GQ-1000-V3

Aerocool Integrator 850W PSU

  • ATX12V Ver.2.4
  • 80Plus Bronze
  • 2 PCIe 6+2pin for high-end VGA
  • 7 SATA for huge storage
  • 12cm silent cooling fan

£ 47.99  inc. vat

£39.99 ex. vat

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QuickFind: 774869   |   Mfr part code: ACP-I850BM-OEM

Corsair TX550M 550W 80 Plus Gold Power Supply

  • 550W Corsair TX-M Series TX550M PSU
  • 80PLUS Gold
  • Hybrid Modular, Single Rail
  • 43A + 12V, 120mm Fan
  • ATX PSU

£ 69.06  inc. vat

£57.55 ex. vat

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QuickFind: 782056   |   Mfr part code: CP-9020133-UK

EVGA 650 GQ Modular Gold Rated 80+ Power Supply

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

£ 75.03  inc. vat

£62.52 ex. vat

View Product

QuickFind: 730191   |   Mfr part code: 210-GQ-0650-V3

Corsair 650W CX650 Bronze ATX Power Supply/PSU

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

£ 64.48  inc. vat

£53.73 ex. vat

View Product

QuickFind: 782054   |   Mfr part code: CP-9020122-UK

EVGA 650W G2 Fully Modular 80+ PSU

  • Single +12V Rail
  • LLC Resonant Circuit layout
  • Fully Modular
  • Double Ball Bearing Fan
  • Gold Rated Efficiency

£ 102.26  inc. vat

£85.21 ex. vat

View Product

QuickFind: 716706   |   Mfr part code: 220-G2-0650-Y3

Cooler Master V750W Fully Modular 80 Plus Gold Power Supply

  • Form Factor ATX 12V v2.31
  • Cooler Master's exclusive Silencio FP fan technology enhances...
  • Fully modular, flat cable design for better cable management

£ 115.98  inc. vat

£96.65 ex. vat

View Product

QuickFind: 737180   |   Mfr part code: RS750-AFBAG1-UK

Be Quiet! 400W PSU - BN272 Pure Power 10

  • 400 Watts of continuous power
  • 80PLUS® Silver certification
  • Exceptionally quiet operation
  • Stable operation

£ 46.49  inc. vat

£38.74 ex. vat

View Product

QuickFind: 779006   |   Mfr part code: BN272

be quiet! 600W Pure Power 10 CM Semi Modular PSU

  • Exceptionally quiet
  • 80PLUS® Silver certification
  • Easy-to-use flat drives and PCIe cables
  • Two 12V-rails and up to four PCI-express connectors

£ 71.69  inc. vat

£77.98save £6.29

£59.74 ex. vat

£64.98save £5.24
View Product

QuickFind: 779013   |   Mfr part code: BN278

£ 105.99  inc. vat

£88.32 ex. vat

View Product

QuickFind: 782059   |   Mfr part code: CP-9020130-UK

Riotoro Onyx - PSU 750W +80 Bronze UK Version Semi Modular

  • 80 Plus Bronze Certified
  • Semi-Modular
  • Flat Cables Reduce Clutter & Airflow
  • Thermally Controlled Fan
  • 3 Year Warranty

£ 59.96  inc. vat

£49.96 ex. vat

View Product

QuickFind: 809573   |   Mfr part code: PR-BA0750-SM-UK

EVGA Supernova 850w PSU

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

£ 92.12  inc. vat

£114.50save £22.38

£76.76 ex. vat

£95.41save £18.65
View Product

QuickFind: 830663   |   Mfr part code: 120-GP-0850-X3

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...

£ 36.99  inc. vat

£30.82 ex. vat

View Product

QuickFind: 835000   |   Mfr part code: CP-9020170-UK

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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.

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.