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.
PC Computer Power Supply Units (25 products)
Read more about PC Computer Power Supply Units
Showing 1 - 24 of 25 results
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EVGA 100-BR-0700-K3 700 BR, 80+ Bronze 700W, Power Supply
- Quiet and Intelligent Auto Fan for near-silent operation
- 80 PLUS Bronze certified
- 85% efficiency or higher under typical loads
- 3 Year Warranty
£ 50.42 inc. vat
£53.12save £2.70£ 42.01 ex. vat
£44.26save £2.25
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
£ 41.96 inc. vat
£45.33save £3.37£ 34.96 ex. vat
£37.77save £2.81
Evga 500w 80+ White Series Psu
- 80PLUS
- Fully Wired
- Single Rail,
- Intelligent Auto fan
- ATX PSU
£ 43.49 inc. vat
£ 36.24 ex. vat
Be Quiet! Pure Power 11 300w Power Supply
- 80 Plus Bronze
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
£ 39.48 inc. vat
£ 32.90 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
£ 34.89 inc. vat
£ 29.07 ex. vat
Be Quiet! 500W System Power 9 PSU
- Rock-solid stability with two strong 12V-rails
- DC-to-DC technology for tight voltage regulation
- Multi-GPU support with two PCIe connectors
- Stand-by drain of less than 0.15 watts
£ 41.49 inc. vat
£ 34.57 ex. vat
Be Quiet! Pure Power 11 500w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
£ 58.31 inc. vat
£ 48.59 ex. vat
Thermaltake Smart DPS G Digital 450w Power Supply 80+ G
- Smart Power Management
- Ultra Quiet 120mm Fan
- 80 Plus 230V Standard Certified
- Multiple Connectors
£ 42.99 inc. vat
£ 35.82 ex. vat
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
£ 50.55 inc. vat
£ 42.12 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...
£ 44.99 inc. vat
£49.98save £4.99£ 37.49 ex. vat
£41.65save £4.16
Be Quiet! Pure Power 11 600w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
£ 67.11 inc. vat
£ 55.92 ex. vat
Deepcool 500W DA500-M 80 Plus Bronze Power Supply
- Up to 85% efficiency
- Assembled copper AL heatsink make cooling more efficient
- 14CM silent fan with PWM function
£ 44.98 inc. vat
£46.98save £2.00£ 37.48 ex. vat
£39.15save £1.67
Be Quiet! Pure Power 11 350w Power Supply
- 80 Plus Bronze
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
£ 44.97 inc. vat
£ 37.47 ex. vat
Be Quiet TFX Power 2 300W Fully Wired 80+ Bronze Power Supply
- Black Coloured PSU with a 80mm Silent Cooling Fan
- Equipped with a Dual 12v Rail Delivering upto Amps
- Equipped with 8 PCI-E Connectors for Graphics Cards
£ 50.13 inc. vat
£ 41.77 ex. vat
Corsair 750W CX750 Bronze ATX Power Supply/PSU
- 750W Corsair CX Series CX750
- 80PLUS Bronze
- Fully Wired
- Single Rail
- 62.5A +12V, 140mm Fan
£ 83.54 inc. vat
£85.17save £1.63£ 69.61 ex. vat
£70.97save £1.36
EVGA 500w BR Power Supply
- 80 Plus Bronze
- Single 12V Rail
- Quiet and Intelligent Auto Fan for near-silent operation
- 85% efficiency or higher under typical loads
£ 41.49 inc. vat
£ 34.57 ex. vat
EVGA 80+ Bronze 600W ATX Power Supply
- Quiet and Intelligent Auto Fan for near-silent operation
- 80 PLUS Bronze certified
- 85% efficiency or higher under typical loads
- 3 Year Warranty
£ 52.71 inc. vat
£56.98save £4.27£ 43.92 ex. vat
£47.48save £3.56
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...
£ 36.90 inc. vat
£42.33save £5.43£ 30.75 ex. vat
£35.27save £4.52
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)
£ 44.96 inc. vat
£ 37.46 ex. vat
Corsair CX series CX550 550W 80 PLUS BRONZE
- 80 PLUS Bronze certified
- Thermally Controlled Fan
- Non Modular
£ 61.49 inc. vat
£ 51.24 ex. vat
Be Quiet! 600W System Power 9 PSU
- Rock-solid stability with two strong 12V-rails
- DC-to-DC technology for tight voltage regulation
- Multi-GPU support with four PCIe connectors
- 80PLUS® Bronze efficiency (up to 89%
£ 54.75 inc. vat
£ 45.62 ex. vat
Be Quiet! Pure Power 11 400w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
£ 50.38 inc. vat
£ 41.98 ex. vat
CISCO SYSTEMS PWR-C1-350WAC= Cisco - Power supply
- 350W AC Config 1 power supply
£ 372.99 inc. vat
£ 310.82 ex. vat
Finance from per month.
( APR) representative
Be Quiet SFX Power 2 300W Fully Wired 80+ Bronze Power Supply
- Black Coloured PSU with a 80mm Silent Cooling Fan
- Equipped with a Dual 12v Rail Delivering upto Amps
- Equipped with 1 PCI-E Connectors for Graphics Cards
£ 47.94 inc. vat
£ 39.95 ex. vat
EVGA 100-BR-0700-K3 700 BR, 80+ Bronze 700W, Power Supply
- Quiet and Intelligent Auto Fan for near-silent operation
- 80 PLUS Bronze certified
- 85% efficiency or higher under typical loads
- 3 Year Warranty
QuickFind: 856195
Mfr part code: 100-BR-0700-K3
£ 50.42 inc. vat
£53.12save £2.70£ 42.01 ex. vat
£44.26save £2.25
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
QuickFind: 834999
Mfr part code: CP-9020171-UK
£ 41.96 inc. vat
£45.33save £3.37£ 34.96 ex. vat
£37.77save £2.81
Evga 500w 80+ White Series Psu
- 80PLUS
- Fully Wired
- Single Rail,
- Intelligent Auto fan
- ATX PSU
QuickFind: 767324
Mfr part code: 100-W1-0500-K3
£ 43.49 inc. vat
£ 36.24 ex. vat
Be Quiet! Pure Power 11 300w Power Supply
- 80 Plus Bronze
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
QuickFind: 865164
Mfr part code: BN290
£ 39.48 inc. vat
£ 32.90 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
QuickFind: 726364
Mfr part code: CP-9020095-UK
£ 34.89 inc. vat
£ 29.07 ex. vat
Be Quiet! 500W System Power 9 PSU
- Rock-solid stability with two strong 12V-rails
- DC-to-DC technology for tight voltage regulation
- Multi-GPU support with two PCIe connectors
- Stand-by drain of less than 0.15 watts
QuickFind: 859747
Mfr part code: BN246
£ 41.49 inc. vat
£ 34.57 ex. vat
Be Quiet! Pure Power 11 500w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
QuickFind: 865167
Mfr part code: BN293
£ 58.31 inc. vat
£ 48.59 ex. vat
Thermaltake Smart DPS G Digital 450w Power Supply 80+ G
- Smart Power Management
- Ultra Quiet 120mm Fan
- 80 Plus 230V Standard Certified
- Multiple Connectors
QuickFind: 766407
Mfr part code: PS-SPG-0450DPCWEU-2
£ 42.99 inc. vat
£ 35.82 ex. vat
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
QuickFind: 835150
Mfr part code: CP-9020172-UK
£ 50.55 inc. vat
£ 42.12 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...
QuickFind: 781898
Mfr part code: CP-9020120-UK
£ 44.99 inc. vat
£49.98save £4.99£ 37.49 ex. vat
£41.65save £4.16
Be Quiet! Pure Power 11 600w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
QuickFind: 865168
Mfr part code: BN294
£ 67.11 inc. vat
£ 55.92 ex. vat
Deepcool 500W DA500-M 80 Plus Bronze Power Supply
- Up to 85% efficiency
- Assembled copper AL heatsink make cooling more efficient
- 14CM silent fan with PWM function
QuickFind: 730108
Mfr part code: DA500-M
£ 44.98 inc. vat
£46.98save £2.00£ 37.48 ex. vat
£39.15save £1.67
Be Quiet! Pure Power 11 350w Power Supply
- 80 Plus Bronze
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
QuickFind: 865165
Mfr part code: BN291
£ 44.97 inc. vat
£ 37.47 ex. vat
Be Quiet TFX Power 2 300W Fully Wired 80+ Bronze Power Supply
- Black Coloured PSU with a 80mm Silent Cooling Fan
- Equipped with a Dual 12v Rail Delivering upto Amps
- Equipped with 8 PCI-E Connectors for Graphics Cards
QuickFind: 620502
Mfr part code: BN228
£ 50.13 inc. vat
£ 41.77 ex. vat
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
£ 83.54 inc. vat
£85.17save £1.63£ 69.61 ex. vat
£70.97save £1.36
EVGA 500w BR Power Supply
- 80 Plus Bronze
- Single 12V Rail
- Quiet and Intelligent Auto Fan for near-silent operation
- 85% efficiency or higher under typical loads
QuickFind: 865260
Mfr part code: 100-BR-0500-K3
£ 41.49 inc. vat
£ 34.57 ex. vat
EVGA 80+ Bronze 600W ATX Power Supply
- Quiet and Intelligent Auto Fan for near-silent operation
- 80 PLUS Bronze certified
- 85% efficiency or higher under typical loads
- 3 Year Warranty
QuickFind: 870803
Mfr part code: 100-BR-0600-K3
£ 52.71 inc. vat
£56.98save £4.27£ 43.92 ex. vat
£47.48save £3.56
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
£ 36.90 inc. vat
£42.33save £5.43£ 30.75 ex. vat
£35.27save £4.52
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)
QuickFind: 716703
Mfr part code: 100-W1-0600-K3
£ 44.96 inc. vat
£ 37.46 ex. vat
Corsair CX series CX550 550W 80 PLUS BRONZE
- 80 PLUS Bronze certified
- Thermally Controlled Fan
- Non Modular
QuickFind: 782046
Mfr part code: CP-9020121-UK
£ 61.49 inc. vat
£ 51.24 ex. vat
Be Quiet! 600W System Power 9 PSU
- Rock-solid stability with two strong 12V-rails
- DC-to-DC technology for tight voltage regulation
- Multi-GPU support with four PCIe connectors
- 80PLUS® Bronze efficiency (up to 89%
QuickFind: 859749
Mfr part code: BN247
£ 54.75 inc. vat
£ 45.62 ex. vat
Be Quiet! Pure Power 11 400w Power Supply
- 80 Plus Gold
- Exceptionally Quiet Operation
- Silence-Optimized 120mm Be Quiet! Fan
- Attractively Sleeved Cables
- 5 Year Warranty
QuickFind: 865166
Mfr part code: BN292
£ 50.38 inc. vat
£ 41.98 ex. vat
CISCO SYSTEMS PWR-C1-350WAC= Cisco - Power supply
- 350W AC Config 1 power supply
QuickFind: 483999
Mfr part code: PWR-C1-350WAC=
£ 372.99 inc. vat
£ 310.82 ex. vat
Finance from per month.
( APR) representative
Be Quiet SFX Power 2 300W Fully Wired 80+ Bronze Power Supply
- Black Coloured PSU with a 80mm Silent Cooling Fan
- Equipped with a Dual 12v Rail Delivering upto Amps
- Equipped with 1 PCI-E Connectors for Graphics Cards
QuickFind: 620499
Mfr part code: BN226
£ 47.94 inc. vat
£ 39.95 ex. vat
Showing 1 - 24 of 25 results
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Why You Need A High Quality PSUThe 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 SupplyFirstly, 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.
OutputWhen 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 EfficiencyBut 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 CablingThere 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.