PC Computer Power Supply Units (74)

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.

Read more about PC Computer Power Supply Units

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4 pages
Free Delivery EVGA Supernova 750W Fully Modular 80+ Gold Power Supply

EVGA Supernova 750W Fully Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62.4 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£ 111.51  inc. vat

£ 92.92 ex. vat

More Info
Free Delivery EVGA 650w B3 PSU 80+ Bronze Fully Modular Power Supply

EVGA 650w B3 PSU 80+ Bronze Fully Modular Power Supply

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 3x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 66.98  inc. vat

£76.98save £10.00

£ 55.81 ex. vat

£64.15save £8.34
More Info
Free Delivery EVGA SuperNOVA 650w PSU

EVGA SuperNOVA 650w PSU

  • 5 Year Warranty
  • 80PLUS Gold Certificate, with up to 90% efficiency
  • Highest quality Japanese Capacitors
  • Fully Modular to reduce clutter and improve airflow

£ 77.99  inc. vat

£89.10save £11.11

£ 64.99 ex. vat

£74.25save £9.26
More Info
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

£ 109.98  inc. vat

£120.68save £10.70

£ 91.65 ex. vat

£100.56save £8.91
More Info
Free Delivery EVGA Supernova 750w PSU

EVGA Supernova 750w PSU

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

£ 89.98  inc. vat

£112.20save £22.22

£ 74.98 ex. vat

£93.50save £18.52
More Info
Free Delivery Corsair HX850i 850 Watt Power Supply

Corsair HX850i 850 Watt Power Supply

  • 80 PLUS Platinum efficiency, delivering 92% energy efficiency at real...
  • 140mm thermally controlled fluid dynamic bearing fan spins up as...

£ 159.99  inc. vat

£172.72save £12.73

£ 133.32 ex. vat

£143.93save £10.61
More Info
Free Delivery 550w G3 80+ Modular Gold

550w G3 80+ Modular Gold

  • 550W EVGA G3
  • 80 PLUS Gold
  • Full Modular
  • SLI/CrossFire
  • Single Rail

£ 78.11  inc. vat

£91.67save £13.56

£ 65.09 ex. vat

£76.39save £11.30
More Info
Free Delivery EVGA 750 B3 750W Modular 80+ Bronze PSU

EVGA 750 B3 750W Modular 80+ Bronze PSU

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 76.49  inc. vat

£ 63.74 ex. vat

More Info
Free Delivery EVGA SuperNOVA 1000 G1+ PSU

EVGA SuperNOVA 1000 G1+ PSU

  • 80 Plus Gold Certified
  • Fully Modular to reduce clutter and improve airflow
  • NVIDIA SLI & AMD Crossfire Ready
  • 100% Japanese Capacitors

£ 124.36  inc. vat

£139.98save £15.62

£ 103.63 ex. vat

£116.65save £13.02
More Info
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

£ 94.98  inc. vat

£125.74save £30.76

£ 79.15 ex. vat

£104.78save £25.63
More Info
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...

£ 136.49  inc. vat

£148.54save £12.05

£ 113.74 ex. vat

£123.78save £10.04
More Info
Free Delivery Corsair RM850x White Series

Corsair RM850x White Series

  • Temperature controlled
  • Fully modular
  • 10 year warranty

£ 138.36  inc. vat

£160.98save £22.62

£ 115.30 ex. vat

£134.15save £18.85
More Info
Free Delivery Corsair RMx Series RM650x 80 PLUS Gold Fully Modular ATX PSU

Corsair RMx Series RM650x 80 PLUS Gold Fully Modular ATX PSU

  • 80 Plus Gold
  • Low Noise Operation
  • Fully Modular
  • 100% All Japanese 105c Capacitors
  • 10 Year Warranty

£ 98.04  inc. vat

£ 81.70 ex. vat

More Info
Free Delivery Corsair RM750x 80+ Gold Fully Modular Power Supply

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

£ 109.97  inc. vat

£ 91.64 ex. vat

More Info

EVGA 450 B3 450W Modular 80+ Bronze PSU

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 48.95  inc. vat

£54.76save £5.81

£ 40.79 ex. vat

£45.63save £4.84
More Info
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

£ 182.99  inc. vat

£ 152.49 ex. vat

More Info
Free Delivery Straight Power 11 1000w - 80plus Gold Power Supply

Straight Power 11 1000w - 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

£ 146.98  inc. vat

£161.99save £15.01

£ 122.48 ex. vat

£134.99save £12.51
More Info
Free Delivery Coolermaster Vanguard 1000W Fully Modular 80+ Gold Power Supply

Coolermaster Vanguard 1000W Fully Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 135 Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 83 Amps
  • Equipped with 8 PCI-E Connectors for Graphics Cards

£ 139.97  inc. vat

£149.98save £10.01

£ 116.64 ex. vat

£124.98save £8.34
More Info
Free Delivery Corsair RM850i RMi Series 850 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

Corsair RM850i RMi Series 850 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 470 x 405 x 165 (mm)

£ 129.98  inc. vat

£147.50save £17.52

£ 108.31 ex. vat

£122.91save £14.60
More Info
Free Delivery EVGA SuperNOVA 650 P2 Power Supply

EVGA SuperNOVA 650 P2 Power Supply

  • 80 PLUS Platinum certified
  • Fully Modular
  • NVIDIA SLI & AMD Crossfire Ready
  • Unbeatable 10 Year Warranty

£ 110.99  inc. vat

£123.41save £12.42

£ 92.49 ex. vat

£102.84save £10.35
More Info
Free Delivery Evga Supernova 650 G3 Power Supply

Evga Supernova 650 G3 Power Supply

  • 80 PLUS Gold certified
  • Highest Quality Japanese Capacitors
  • Fully Modular
  • SLI & Crossfire Ready
  • 7 Year Warranty

£ 88.59  inc. vat

£ 73.82 ex. vat

More Info
Free Delivery Straight Power 11 450w - 80plus Gold Power Supply

Straight Power 11 450w - 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

£ 78.53  inc. vat

£84.26save £5.73

£ 65.44 ex. vat

£70.21save £4.77
More Info
Free Delivery Evga 1000w G3 80+ Modular Gold

Evga 1000w G3 80+ Modular Gold

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

£ 149.99  inc. vat

£178.95save £28.96

£ 124.99 ex. vat

£149.12save £24.13
More Info
Free Delivery Thermaltake Smart Pro 750W Fully Modular PSU - RGB Fan

Thermaltake Smart Pro 750W Fully Modular PSU - RGB Fan

  • 80 Plus Bronze Certified
  • Fully Modular Low-Profile Flat Cable
  • Riing 14 RGB Fan
  • Fan Face-Up for Better Cooling

£ 89.91  inc. vat

£94.92save £5.01

£ 74.92 ex. vat

£79.10save £4.18
More Info

EVGA Supernova 750W Fully Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 62.4 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards
Free Delivery

£ 111.51  inc. vat

£ 92.92 ex. vat

View Product
More Info

QuickFind: 630112   |   Mfr part code: 220-G2-0750-X3

EVGA 650w B3 PSU 80+ Bronze Fully Modular Power Supply

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 3x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor
Free Delivery

£ 66.98  inc. vat

£76.98save £10.00

£ 55.81 ex. vat

£64.15save £8.34
View Product
More Info

QuickFind: 791242   |   Mfr part code: 220-B3-0650-V3

EVGA SuperNOVA 650w PSU

  • 5 Year Warranty
  • 80PLUS Gold Certificate, with up to 90% efficiency
  • Highest quality Japanese Capacitors
  • Fully Modular to reduce clutter and improve airflow
Free Delivery

£ 77.99  inc. vat

£89.10save £11.11

£ 64.99 ex. vat

£74.25save £9.26
View Product
More Info

QuickFind: 830658   |   Mfr part code: 120-GP-0650-X3

EVGA 750w G3 80+ Modular Gold

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

£ 109.98  inc. vat

£120.68save £10.70

£ 91.65 ex. vat

£100.56save £8.91
View Product
More Info

QuickFind: 767601   |   Mfr part code: 220-G3-0750-X3

EVGA Supernova 750w PSU

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

£ 89.98  inc. vat

£112.20save £22.22

£ 74.98 ex. vat

£93.50save £18.52
View Product
More Info

QuickFind: 830661   |   Mfr part code: 120-GP-0750-X3

Corsair HX850i 850 Watt Power Supply

  • 80 PLUS Platinum efficiency, delivering 92% energy efficiency at real...
  • 140mm thermally controlled fluid dynamic bearing fan spins up as...
Free Delivery

£ 159.99  inc. vat

£172.72save £12.73

£ 133.32 ex. vat

£143.93save £10.61
View Product
More Info

QuickFind: 659513   |   Mfr part code: CP-9020073-UK

550w G3 80+ Modular Gold

  • 550W EVGA G3
  • 80 PLUS Gold
  • Full Modular
  • SLI/CrossFire
  • Single Rail
Free Delivery

£ 78.11  inc. vat

£91.67save £13.56

£ 65.09 ex. vat

£76.39save £11.30
View Product
More Info

QuickFind: 769400   |   Mfr part code: 220-G3-0550-Y3

EVGA 750 B3 750W Modular 80+ Bronze PSU

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 4x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor
Free Delivery

£ 76.49  inc. vat

£ 63.74 ex. vat

View Product
More Info

QuickFind: 791243   |   Mfr part code: 220-B3-0750-V3

EVGA SuperNOVA 1000 G1+ PSU

  • 80 Plus Gold Certified
  • Fully Modular to reduce clutter and improve airflow
  • NVIDIA SLI & AMD Crossfire Ready
  • 100% Japanese Capacitors
Free Delivery

£ 124.36  inc. vat

£139.98save £15.62

£ 103.63 ex. vat

£116.65save £13.02
View Product
More Info

QuickFind: 828430   |   Mfr part code: 120-GP-1000-X3

EVGA Supernova 850w PSU

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

£ 94.98  inc. vat

£125.74save £30.76

£ 79.15 ex. vat

£104.78save £25.63
View Product
More Info

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

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...
Free Delivery

£ 136.49  inc. vat

£148.54save £12.05

£ 113.74 ex. vat

£123.78save £10.04
View Product
More Info

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

Corsair RM850x White Series

  • Temperature controlled
  • Fully modular
  • 10 year warranty
Free Delivery

£ 138.36  inc. vat

£160.98save £22.62

£ 115.30 ex. vat

£134.15save £18.85
View Product
More Info

QuickFind: 798731   |   Mfr part code: CP-9020156-UK

Corsair RMx Series RM650x 80 PLUS Gold Fully Modular ATX PSU

  • 80 Plus Gold
  • Low Noise Operation
  • Fully Modular
  • 100% All Japanese 105c Capacitors
  • 10 Year Warranty
Free Delivery

£ 98.04  inc. vat

£ 81.70 ex. vat

View Product
More Info

QuickFind: 856937   |   Mfr part code: CP-9020178-UK

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
Free Delivery

£ 109.97  inc. vat

£ 91.64 ex. vat

View Product
More Info

QuickFind: 858591   |   Mfr part code: CP-9020179-UK

EVGA 450 B3 450W Modular 80+ Bronze PSU

  • 3x Molex Connectors
  • 6x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 48.95  inc. vat

£54.76save £5.81

£ 40.79 ex. vat

£45.63save £4.84
View Product
More Info

QuickFind: 791238   |   Mfr part code: 220-B3-0450-V3

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
Free Delivery

£ 182.99  inc. vat

£ 152.49 ex. vat

View Product
More Info

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

Straight Power 11 1000w - 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
Free Delivery

£ 146.98  inc. vat

£161.99save £15.01

£ 122.48 ex. vat

£134.99save £12.51
View Product
More Info

QuickFind: 826243   |   Mfr part code: BN285

Coolermaster Vanguard 1000W Fully Modular 80+ Gold Power Supply

  • Black Coloured PSU with a 135 Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 83 Amps
  • Equipped with 8 PCI-E Connectors for Graphics Cards
Free Delivery

£ 139.97  inc. vat

£149.98save £10.01

£ 116.64 ex. vat

£124.98save £8.34
View Product
More Info

QuickFind: 514897   |   Mfr part code: RSA00-AFBAG1-UK

Corsair RM850i RMi Series 850 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 470 x 405 x 165 (mm)
Free Delivery

£ 129.98  inc. vat

£147.50save £17.52

£ 108.31 ex. vat

£122.91save £14.60
View Product
More Info

QuickFind: 715154   |   Mfr part code: CP-9020083-UK

EVGA SuperNOVA 650 P2 Power Supply

  • 80 PLUS Platinum certified
  • Fully Modular
  • NVIDIA SLI & AMD Crossfire Ready
  • Unbeatable 10 Year Warranty
Free Delivery

£ 110.99  inc. vat

£123.41save £12.42

£ 92.49 ex. vat

£102.84save £10.35
View Product
More Info

QuickFind: 725417   |   Mfr part code: 220-P2-0650-X3

Evga Supernova 650 G3 Power Supply

  • 80 PLUS Gold certified
  • Highest Quality Japanese Capacitors
  • Fully Modular
  • SLI & Crossfire Ready
  • 7 Year Warranty
Free Delivery

£ 88.59  inc. vat

£ 73.82 ex. vat

View Product
More Info

QuickFind: 768997   |   Mfr part code: 220-G3-0650-Y3

Straight Power 11 450w - 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
Free Delivery

£ 78.53  inc. vat

£84.26save £5.73

£ 65.44 ex. vat

£70.21save £4.77
View Product
More Info

QuickFind: 826244   |   Mfr part code: BN280

Evga 1000w G3 80+ Modular Gold

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

£ 149.99  inc. vat

£178.95save £28.96

£ 124.99 ex. vat

£149.12save £24.13
View Product
More Info

QuickFind: 767602   |   Mfr part code: 220-G3-1000-X3

Thermaltake Smart Pro 750W Fully Modular PSU - RGB Fan

  • 80 Plus Bronze Certified
  • Fully Modular Low-Profile Flat Cable
  • Riing 14 RGB Fan
  • Fan Face-Up for Better Cooling
Free Delivery

£ 89.91  inc. vat

£94.92save £5.01

£ 74.92 ex. vat

£79.10save £4.18
View Product
More Info

QuickFind: 788068   |   Mfr part code: PS-SPR-0750FPCBEU-R

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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.