Ebuyer Recommends

View more...
View all 152 PC Computer Power Supply Units

PC Computer Power Supply Units (152)

Grid List

TR2 S Series 600W Power Supply 80 Plus Certified Active

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

£ 34.97  inc. vat

£49.98save £15.01

£ 29.14 ex. vat

£41.65save £12.51
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

£ 39.00  inc. vat

£46.48save £7.48

£ 32.50 ex. vat

£38.73save £6.23
More Info
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

£ 75.56  inc. vat

£86.58save £11.02

£ 62.96 ex. vat

£72.15save £9.19
More Info

Corsair VS Series VS650 650W Power Supply 80 Plus

  • 2x Molex Connectors
  • 7x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 46.49  inc. vat

£ 38.74 ex. vat

More Info
Free Delivery EVGA 600W White Series 80+ Power Supply

EVGA 600W White Series 80+ Power Supply

  • 80 Plus Effieciency
  • 1x 120mm Fan
  • Quiet and Intelligent Auto Fan for near-silent operation
  • Dimensions 150 x 85 x 140 mm (WxHxD)

£ 49.98  inc. vat

£60.94save £10.96

£ 41.65 ex. vat

£50.78save £9.13
More Info

Coolermaster Masterwatt Lite V2 400w PSU

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

£ 30.65  inc. vat

£33.84save £3.19

£ 25.54 ex. vat

£28.20save £2.66
More Info

Cooler Master MasterWatt Lite 500 V2 PSU

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

£ 37.02  inc. vat

£39.21save £2.19

£ 30.85 ex. vat

£32.67save £1.82
More Info
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

£ 96.96  inc. vat

£104.19save £7.23

£ 80.80 ex. vat

£86.82save £6.02
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

£ 83.99  inc. vat

£108.99save £25.00

£ 69.99 ex. vat

£90.82save £20.83
More Info

Cooler Master MasterWatt Lite 600 V2 PSU

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

£ 47.07  inc. vat

£ 39.22 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

£ 48.99  inc. vat

£57.99save £9.00

£ 40.82 ex. vat

£48.32save £7.50
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

£ 77.49  inc. vat

£83.63save £6.14

£ 64.57 ex. vat

£69.69save £5.12
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...

£ 148.10  inc. vat

£ 123.41 ex. vat

More Info
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

£ 74.98  inc. vat

£ 62.48 ex. vat

More Info

Evga 500w 80+ White Series Psu

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

£ 42.93  inc. vat

£45.80save £2.87

£ 35.77 ex. vat

£38.16save £2.39
More Info

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

£ 45.48  inc. vat

£52.44save £6.96

£ 37.90 ex. vat

£43.70save £5.80
More Info

Cooler Master MasterWatt Lite 700 V2 PSU

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

£ 47.98  inc. vat

£ 39.98 ex. vat

More Info
Free Delivery Corsair CX850M Semi Modular 80 Plus Bronze Power Supply

Corsair CX850M Semi Modular 80 Plus Bronze Power Supply

  • Up to 85% energy efficiency means less heat generation and lower energy...
  • 0.99 Active Power Factor Correction provides clean and reliable power...
  • Universal AC input from 90-264V

£ 99.47  inc. vat

£ 82.89 ex. vat

More Info
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

£ 216.80  inc. vat

£ 180.66 ex. vat

More Info
Free Delivery Cooler Master MasterWatt 750 Semi Modular PSU

Cooler Master MasterWatt 750 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

£ 70.49  inc. vat

£ 58.74 ex. vat

More Info
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

£ 58.71  inc. vat

£ 48.92 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...

£ 39.47  inc. vat

£ 32.89 ex. vat

More Info
Free Delivery Corsair RM650i RMi Series 650 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

Corsair RM650i RMi Series 650 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 425 x 310 x 445 (mm)

£ 118.06  inc. vat

£ 98.38 ex. vat

More Info
Free Delivery EVGA 650 BQ Power Supply

EVGA 650 BQ Power Supply

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

£ 59.97  inc. vat

£71.00save £11.03

£ 49.97 ex. vat

£59.16save £9.19
More Info

TR2 S Series 600W Power Supply 80 Plus Certified Active

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

£ 34.97  inc. vat

£49.98save £15.01

£ 29.14 ex. vat

£41.65save £12.51
View Product
More Info

QuickFind: 774819   |   Mfr part code: TRS-0600P-2

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

£ 39.00  inc. vat

£46.48save £7.48

£ 32.50 ex. vat

£38.73save £6.23
View Product
More Info

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

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

£ 75.56  inc. vat

£86.58save £11.02

£ 62.96 ex. vat

£72.15save £9.19
View Product
More Info

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

Corsair VS Series VS650 650W Power Supply 80 Plus

  • 2x Molex Connectors
  • 7x SATA Connectors
  • 2x PCIe Connectors (6+2-Pin)
  • 4 + 4-Pin CPU Power Connector
  • ATX Form Factor

£ 46.49  inc. vat

£ 38.74 ex. vat

View Product
More Info

QuickFind: 835150   |   Mfr part code: CP-9020172-UK

EVGA 600W White Series 80+ Power Supply

  • 80 Plus Effieciency
  • 1x 120mm Fan
  • Quiet and Intelligent Auto Fan for near-silent operation
  • Dimensions 150 x 85 x 140 mm (WxHxD)
Free Delivery

£ 49.98  inc. vat

£60.94save £10.96

£ 41.65 ex. vat

£50.78save £9.13
View Product
More Info

QuickFind: 716703   |   Mfr part code: 100-W1-0600-K3

Coolermaster Masterwatt Lite V2 400w PSU

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

£ 30.65  inc. vat

£33.84save £3.19

£ 25.54 ex. vat

£28.20save £2.66
View Product
More Info

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

Cooler Master MasterWatt Lite 500 V2 PSU

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

£ 37.02  inc. vat

£39.21save £2.19

£ 30.85 ex. vat

£32.67save £1.82
View Product
More Info

QuickFind: 828325   |   Mfr part code: MPX-5001-ACABW-KS

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

£ 96.96  inc. vat

£104.19save £7.23

£ 80.80 ex. vat

£86.82save £6.02
View Product
More Info

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

Evga Supernova 650 G3 Power Supply

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

£ 83.99  inc. vat

£108.99save £25.00

£ 69.99 ex. vat

£90.82save £20.83
View Product
More Info

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

Cooler Master MasterWatt Lite 600 V2 PSU

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

£ 47.07  inc. vat

£ 39.22 ex. vat

View Product
More Info

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

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

£ 48.99  inc. vat

£57.99save £9.00

£ 40.82 ex. vat

£48.32save £7.50
View Product
More Info

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

£ 77.49  inc. vat

£83.63save £6.14

£ 64.57 ex. vat

£69.69save £5.12
View Product
More Info

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

£ 148.10  inc. vat

£ 123.41 ex. vat

View Product
More Info

QuickFind: 659514   |   Mfr part code: CP-9020072-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
Free Delivery

£ 74.98  inc. vat

£ 62.48 ex. vat

View Product
More Info

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

Evga 500w 80+ White Series Psu

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

£ 42.93  inc. vat

£45.80save £2.87

£ 35.77 ex. vat

£38.16save £2.39
View Product
More Info

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

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

£ 45.48  inc. vat

£52.44save £6.96

£ 37.90 ex. vat

£43.70save £5.80
View Product
More Info

QuickFind: 779011   |   Mfr part code: BN276

Cooler Master MasterWatt Lite 700 V2 PSU

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

£ 47.98  inc. vat

£ 39.98 ex. vat

View Product
More Info

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

Corsair CX850M Semi Modular 80 Plus Bronze Power Supply

  • Up to 85% energy efficiency means less heat generation and lower energy...
  • 0.99 Active Power Factor Correction provides clean and reliable power...
  • Universal AC input from 90-264V
Free Delivery

£ 99.47  inc. vat

£ 82.89 ex. vat

View Product
More Info

QuickFind: 669243   |   Mfr part code: CP-9020099-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

£ 216.80  inc. vat

£ 180.66 ex. vat

View Product
More Info

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

Cooler Master MasterWatt 750 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

£ 70.49  inc. vat

£ 58.74 ex. vat

View Product
More Info

QuickFind: 826433   |   Mfr part code: MPX-7501-AMAAB-UK

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

£ 58.71  inc. vat

£ 48.92 ex. vat

View Product
More Info

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

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...

£ 39.47  inc. vat

£ 32.89 ex. vat

View Product
More Info

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

Corsair RM650i RMi Series 650 Watt Fully Modular Power Supply Unit (80 Plus Gold Certified)

  • 80 PLUS Gold certified
  • Fully Modular
  • Corsair Link monitoring and control
  • Dimensions 425 x 310 x 445 (mm)
Free Delivery

£ 118.06  inc. vat

£ 98.38 ex. vat

View Product
More Info

QuickFind: 715152   |   Mfr part code: CP-9020081-UK

EVGA 650 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

£ 59.97  inc. vat

£71.00save £11.03

£ 49.97 ex. vat

£59.16save £9.19
View Product
More Info

QuickFind: 756495   |   Mfr part code: 110-BQ-0650-V3

Grid List

Return to top

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.