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PC Computer Power Supply Units (135)

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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

£ 69.08  inc. vat

£ 57.56 ex. vat

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

£ 74.49  inc. vat

£88.46save £13.97

£ 62.07 ex. vat

£73.71save £11.64
Free Delivery Thermaltake Smart SE 730W Semi Modular 80+ Bronze Power Supply

Thermaltake Smart SE 730W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 57 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards

£ 54.12  inc. vat

£61.55save £7.43

£ 45.10 ex. vat

£51.29save £6.19
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

£ 68.16  inc. vat

£80.19save £12.03

£ 56.80 ex. vat

£66.82save £10.02
Free Delivery EVGA 750 GQ Semi Modular Gold Rated 80+ Power Supply

EVGA 750 GQ Semi Modular Gold Rated 80+ Power Supply

  • 80 PLUS Gold certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Modular Design reduces clutter & improve airflow
  • Whisper Silent 135mm Fluid Dynamic Bearing Fan

£ 74.18  inc. vat

£86.85save £12.67

£ 61.81 ex. vat

£72.37save £10.56

Cooler Master MasterWatt Lite 600 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.07  inc. vat

£41.16save £3.09

£ 31.72 ex. vat

£34.30save £2.58
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

£ 75.32  inc. vat

£ 62.76 ex. vat

CX Series CX450 450 Watt 80 PLUS

  • Low noise 80 PLUS Bronze certified efficiency
  • Reliable and compatible
  • Matte black finish, black-sleeved cables and black connectors...

£ 37.98  inc. vat

£48.75save £10.77

£ 31.65 ex. vat

£40.62save £8.97
Free Delivery Corsair HX1200i High Performance Series (1200 Watt) 80 Plus Platinum ATX Power Supply Unit

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

£ 199.97  inc. vat

£211.98save £12.01

£ 166.64 ex. vat

£176.65save £10.01

Coolermaster Masterwatt Lite V2 400w PSU

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

£ 34.98  inc. vat

£ 29.15 ex. vat

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

£ 43.98  inc. vat

£46.48save £2.50

£ 36.65 ex. vat

£38.73save £2.08
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

£ 103.46  inc. vat

£ 86.21 ex. vat

Free Delivery EVGA 850 GQ Modular Gold Rated 80+ Power Supply

EVGA 850 GQ Modular Gold Rated 80+ Power Supply

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

£ 115.77  inc. vat

£ 96.47 ex. vat

Free Delivery EVGA 750 BQ Power Supply

EVGA 750 BQ Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • Fan Size / Bearing 140mm Teflon Nano-Steel Bearing
  • 5 Year Warranty

£ 59.98  inc. vat

£71.86save £11.88

£ 49.98 ex. vat

£59.88save £9.90

EVGA 450W BT 80+ Bronze PSU

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

£ 39.34  inc. vat

£44.44save £5.10

£ 32.78 ex. vat

£37.03save £4.25

Cooler Master MasterWatt Lite 700 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 46.98  inc. vat

£ 39.15 ex. vat

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

£ 84.06  inc. vat

£89.98save £5.92

£ 70.05 ex. vat

£74.98save £4.93
Free Delivery Corsair 750W TX750M Gold Hybid Modular Power Supply/PSU

Corsair 750W TX750M Gold Hybid Modular Power Supply/PSU

  • 750W Corsair TX-M Series TX750M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail, 62A + 12V, 120mm Fan
  • ATX PSU

£ 99.39  inc. vat

£ 82.82 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

£ 69.51  inc. vat

£77.98save £8.47

£ 57.92 ex. vat

£64.98save £7.06
Free Delivery Cooler Master MasterWatt 550 Semi Modular PSU

Cooler Master MasterWatt 550 Semi Modular PSU

  • 80 PLUS Bronze Certified
  • Durable LDB Bearing
  • Semi-Fanless up to 15% load
  • Dual Forward and DC-to-DC Circuit Design
  • More Conductive PCI-e Cables

£ 56.37  inc. vat

£ 46.97 ex. vat

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

£ 33.99  inc. vat

£ 28.32 ex. vat

Evga 500w 80+ White Series Psu

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

£ 42.96  inc. vat

£45.80save £2.84

£ 35.80 ex. vat

£38.16save £2.36
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

£ 92.98  inc. vat

£108.99save £16.01

£ 77.48 ex. vat

£90.82save £13.34

Be Quiet 400W Pure Power 10 CM Semi Modular PSU/Power S

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

£ 44.49  inc. vat

£52.73save £8.24

£ 37.07 ex. vat

£43.94save £6.87

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
Free Delivery

£ 69.08  inc. vat

£ 57.56 ex. vat

View Product

QuickFind: 782056   |   Mfr part code: CP-9020133-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
Free Delivery

£ 74.49  inc. vat

£88.46save £13.97

£ 62.07 ex. vat

£73.71save £11.64
View Product

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

Thermaltake Smart SE 730W Semi Modular 80+ Bronze Power Supply

  • Black Coloured PSU with a 140mm Silent Cooling Fan
  • Equipped with a Single 12v Rail Delivering upto 57 Amps
  • Equipped with 4 PCI-E Connectors for Graphics Cards
Free Delivery

£ 54.12  inc. vat

£61.55save £7.43

£ 45.10 ex. vat

£51.29save £6.19
View Product

QuickFind: 631115   |   Mfr part code: SPS-730MPCBEU

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

£ 68.16  inc. vat

£80.19save £12.03

£ 56.80 ex. vat

£66.82save £10.02
View Product

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

EVGA 750 GQ Semi Modular Gold Rated 80+ Power Supply

  • 80 PLUS Gold certified
  • NVIDIA SLI & AMD Crossfire Ready
  • Modular Design reduces clutter & improve airflow
  • Whisper Silent 135mm Fluid Dynamic Bearing Fan
Free Delivery

£ 74.18  inc. vat

£86.85save £12.67

£ 61.81 ex. vat

£72.37save £10.56
View Product

QuickFind: 730210   |   Mfr part code: 210-GQ-0750-V3

Cooler Master MasterWatt Lite 600 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 38.07  inc. vat

£41.16save £3.09

£ 31.72 ex. vat

£34.30save £2.58
View Product

QuickFind: 828326   |   Mfr part code: MPX-6001-ACABW-KS

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
Free Delivery

£ 75.32  inc. vat

£ 62.76 ex. vat

View Product

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

CX Series CX450 450 Watt 80 PLUS

  • Low noise 80 PLUS Bronze certified efficiency
  • Reliable and compatible
  • Matte black finish, black-sleeved cables and black connectors...

£ 37.98  inc. vat

£48.75save £10.77

£ 31.65 ex. vat

£40.62save £8.97
View Product

QuickFind: 781898   |   Mfr part code: CP-9020120-UK

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
Free Delivery

£ 199.97  inc. vat

£211.98save £12.01

£ 166.64 ex. vat

£176.65save £10.01
View Product

QuickFind: 700189   |   Mfr part code: CP-9020070-UK

Coolermaster Masterwatt Lite V2 400w PSU

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

£ 34.98  inc. vat

£ 29.15 ex. vat

View Product

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

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

£ 43.98  inc. vat

£46.48save £2.50

£ 36.65 ex. vat

£38.73save £2.08
View Product

QuickFind: 834999   |   Mfr part code: CP-9020171-UK

EVGA 650W G2 Fully Modular 80+ PSU

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

£ 103.46  inc. vat

£ 86.21 ex. vat

View Product

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

EVGA 850 GQ Modular Gold Rated 80+ Power Supply

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

£ 115.77  inc. vat

£ 96.47 ex. vat

View Product

QuickFind: 730223   |   Mfr part code: 210-GQ-0850-V3

EVGA 750 BQ Power Supply

  • Quiet and Intelligent Auto Fan for near-silent operation
  • Fan Size / Bearing 140mm Teflon Nano-Steel Bearing
  • 5 Year Warranty
Free Delivery

£ 59.98  inc. vat

£71.86save £11.88

£ 49.98 ex. vat

£59.88save £9.90
View Product

QuickFind: 756500   |   Mfr part code: 110-BQ-0750-V3

EVGA 450W BT 80+ Bronze PSU

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

£ 39.34  inc. vat

£44.44save £5.10

£ 32.78 ex. vat

£37.03save £4.25
View Product

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

Cooler Master MasterWatt Lite 700 V2 PSU

  • Advanced Circuit Design
  • Silent and Durable Fan
  • Green Power
  • Safety Guardian
  • 80 Plus Standard 230V EU Certified

£ 46.98  inc. vat

£ 39.15 ex. vat

View Product

QuickFind: 828327   |   Mfr part code: MPX-7001-ACABW-KS

EVGA Supernova 750w PSU

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

£ 84.06  inc. vat

£89.98save £5.92

£ 70.05 ex. vat

£74.98save £4.93
View Product

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

Corsair 750W TX750M Gold Hybid Modular Power Supply/PSU

  • 750W Corsair TX-M Series TX750M PSU
  • 80PLUS Gold
  • Hybrid Modular
  • Single Rail, 62A + 12V, 120mm Fan
  • ATX PSU
Free Delivery

£ 99.39  inc. vat

£ 82.82 ex. vat

View Product

QuickFind: 782058   |   Mfr part code: CP-9020131-UK

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
Free Delivery

£ 69.51  inc. vat

£77.98save £8.47

£ 57.92 ex. vat

£64.98save £7.06
View Product

QuickFind: 779013   |   Mfr part code: BN278

Cooler Master MasterWatt 550 Semi Modular PSU

  • 80 PLUS Bronze Certified
  • Durable LDB Bearing
  • Semi-Fanless up to 15% load
  • Dual Forward and DC-to-DC Circuit Design
  • More Conductive PCI-e Cables
Free Delivery

£ 56.37  inc. vat

£ 46.97 ex. vat

View Product

QuickFind: 826440   |   Mfr part code: MPX-5501-AMAAB-UK

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

£ 33.99  inc. vat

£ 28.32 ex. vat

View Product

QuickFind: 726364   |   Mfr part code: CP-9020095-UK

Evga 500w 80+ White Series Psu

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

£ 42.96  inc. vat

£45.80save £2.84

£ 35.80 ex. vat

£38.16save £2.36
View Product

QuickFind: 767324   |   Mfr part code: 100-W1-0500-K3

Evga Supernova 650 G3 Power Supply

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

£ 92.98  inc. vat

£108.99save £16.01

£ 77.48 ex. vat

£90.82save £13.34
View Product

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

Be Quiet 400W Pure Power 10 CM Semi Modular PSU/Power S

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

£ 44.49  inc. vat

£52.73save £8.24

£ 37.07 ex. vat

£43.94save £6.87
View Product

QuickFind: 779011   |   Mfr part code: BN276

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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.