PC Computer Power Supply Units (12 products)

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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Seasonic Focus PX-550 550W 80+ Platinum Modular Power Supply

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 116.48  inc. vat

£ 97.06 ex. vat

More Info

Seasonic Focus GX-650 650W 80+ Gold Modular Power Supply

  • High efficiency thanks to 80 PLUS Gold certification
  • Powerful 54A rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 104.98  inc. vat

£ 87.48 ex. vat

More Info

FOCUS PX-850 850W 80+ PLATINUM MODULAR POWER SUPPLY

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 70A single rail Modular cable management with flat cables...
  • 10 Year manufacturer's guarantee

£ 162.98  inc. vat

£ 135.81 ex. vat

More Info

Seasonic Focus PX-750 750W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail Modular cable management with flat cables...
  • 10 Year manufacturer's guarantee
  • Four 6+2-pin PCIe connectors for graphics cards

£ 145.49  inc. vat

£ 121.24 ex. vat

More Info

Seasonic Focus GX-850 850W 80+ Gold Modular Power Supply

  • High-efficiency thanks to 80 PLUS Gold certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 135.46  inc. vat

£ 112.88 ex. vat

More Info

Seasonic Core Gold GM-650 650W 80+ Gold Modular Power Supply

  • High efficiency with 80 PLUS Gold certification
  • Powerful 54 A single rail
  • Partial modular cable management with flat cables
  • 7 Year manufacturer's guarantee

£ 87.48  inc. vat

£ 72.90 ex. vat

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Seasonic Core Gold GC-500 500W 80+ Gold Power Supply

  • Powerful 12V 41A rail
  • Excellent efficiency with 80 PLUS Gold certification
  • Quiet and temperature-controlled 120mm fan
  • 7 Year guarantee

£ 71.46  inc. vat

£ 59.55 ex. vat

More Info

Seasonic Focus GX-550 550W 80+ Gold Modular Power Supply

  • High efficiency thanks to 80 PLUS Gold certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 93.46  inc. vat

£ 77.88 ex. vat

More Info

Seasonic Core Gold GC-650 650W 80+ Gold Power Supply

  • Powerful 12V 54A rail
  • Excellent efficiency with 80 PLUS Gold certification
  • Quiet and temperature-controlled 120mm fan
  • 7 Year guarantee

£ 79.96  inc. vat

£ 66.63 ex. vat

More Info

Seasonic Focus PX-650 650W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 133.96  inc. vat

£ 111.63 ex. vat

More Info

Seasonic Focus GX-750 750W 80+ Gold Modular Power Supply

  • High-efficiency thanks to 80 PLUS Gold certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

£ 116.48  inc. vat

£ 97.06 ex. vat

More Info

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
More Info

Seasonic Focus PX-550 550W 80+ Platinum Modular Power Supply

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919252

Mfr part code: FOCUS-PX-550

£ 116.48  inc. vat

£ 97.06 ex. vat

More Info

Seasonic Focus GX-650 650W 80+ Gold Modular Power Supply

  • High efficiency thanks to 80 PLUS Gold certification
  • Powerful 54A rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919255

Mfr part code: FOCUS-GX-650

£ 104.98  inc. vat

£ 87.48 ex. vat

More Info

FOCUS PX-850 850W 80+ PLATINUM MODULAR POWER SUPPLY

  • High-efficiency thanks to 80 PLUS Platinum certification
  • Powerful 70A single rail Modular cable management with flat cables...
  • 10 Year manufacturer's guarantee

QuickFind: 919249

Mfr part code: CA-06P-SS

£ 162.98  inc. vat

£ 135.81 ex. vat

More Info

Seasonic Focus PX-750 750W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail Modular cable management with flat cables...
  • 10 Year manufacturer's guarantee
  • Four 6+2-pin PCIe connectors for graphics cards

QuickFind: 919250

Mfr part code: FOCUS-PX-750

£ 145.49  inc. vat

£ 121.24 ex. vat

More Info

Seasonic Focus GX-850 850W 80+ Gold Modular Power Supply

  • High-efficiency thanks to 80 PLUS Gold certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919253

Mfr part code: FOCUS-GX-850

£ 135.46  inc. vat

£ 112.88 ex. vat

More Info

Seasonic Core Gold GM-650 650W 80+ Gold Modular Power Supply

  • High efficiency with 80 PLUS Gold certification
  • Powerful 54 A single rail
  • Partial modular cable management with flat cables
  • 7 Year manufacturer's guarantee

QuickFind: 919259

Mfr part code: CORE-GM-650

£ 87.48  inc. vat

£ 72.90 ex. vat

More Info

Seasonic Core Gold GC-500 500W 80+ Gold Power Supply

  • Powerful 12V 41A rail
  • Excellent efficiency with 80 PLUS Gold certification
  • Quiet and temperature-controlled 120mm fan
  • 7 Year guarantee

QuickFind: 919263

Mfr part code: CORE-GC-500

£ 71.46  inc. vat

£ 59.55 ex. vat

More Info

Seasonic Focus GX-550 550W 80+ Gold Modular Power Supply

  • High efficiency thanks to 80 PLUS Gold certification
  • Powerful 45A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919257

Mfr part code: FOCUS-GX-550

£ 93.46  inc. vat

£ 77.88 ex. vat

More Info

Seasonic Core Gold GC-650 650W 80+ Gold Power Supply

  • Powerful 12V 54A rail
  • Excellent efficiency with 80 PLUS Gold certification
  • Quiet and temperature-controlled 120mm fan
  • 7 Year guarantee

QuickFind: 919261

Mfr part code: CORE-GC-650

£ 79.96  inc. vat

£ 66.63 ex. vat

More Info

Seasonic Focus PX-650 650W 80+ Platinum Modular Power Supply

  • 80 PLUS Platinum certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919251

Mfr part code: FOCUS-PX-650

£ 133.96  inc. vat

£ 111.63 ex. vat

More Info

Seasonic Focus GX-750 750W 80+ Gold Modular Power Supply

  • High-efficiency thanks to 80 PLUS Gold certification
  • Powerful 70A single rail
  • Modular cable management with flat cables
  • 10 Year manufacturer's guarantee

QuickFind: 919254

Mfr part code: FOCUS-GX-750

£ 116.48  inc. vat

£ 97.06 ex. vat

More Info

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
More Info
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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.

Learn more

The best PSUs for gaming