296 products found
Power Supplies - Product Filter
     
Kolink KL-500 500W '80 Plus Bronze' Power Supply

The Kolink KL series are 80 Plus Bronze certified power supply units aimed at the budget system build, offering...

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Kolink KL-500 500W '80 Plus Bronze' Power Supply
 

50+ In stock

£35.99

Kolink AT/ATX "Kettle Plug" IEC - C13 1.8 Meter Mains...

High quality Copper wire 'kettlle plug' cable for ATX power supplies and monitors - Fitted with a moulded plug with...

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Kolink AT/ATX "Kettle Plug" IEC - C13 1.8 Meter Mains Cable 10Amp
 

100+ In stock

£2.99

Kolink KL-600 600W '80 Plus Bronze' Power Supply

The Kolink KL series are 80 Plus Bronze certified power supply units aimed at the budget system build, offering...

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Kolink KL-600 600W '80 Plus Bronze' Power Supply
 

50+ In stock

£41.99

(2)
Corsair Builder Series CX 750W Modular '80 Plus Bronze'...

CX Series™ Modular power supply units are an excellent choice for basic system builds and upgrades, offering high...

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Corsair Builder Series CX 750W Modular '80 Plus Bronze' Power Supply (CP-9020061-UK)
 

Out of stock

£95.99

(4)
Super Flower Leadex II 850W 80 Plus Gold Modular Power Supply - Black

Fully-Modular 80 Plus Gold 850 Watt Power Supply, Premium Electronics, 7 Year Guarantee and Quiet 135 mm FDB Fans

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Super Flower Leadex II 850W 80 Plus Gold Modular Power Supply - Black
 

Out of stock

£129.95

(1)
Cougar VTX 550W 80 Plus Bronze Power Supply - Black

Introducing the Cougar VTX Series of Power Supplies, aggressively priced units which provide reliable 80+ Bronze...

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Cougar VTX 550W 80 Plus Bronze Power Supply - Black
 

3 In stock

£47.99

(1)
Super Flower Leadex II 650W 80 Plus Gold Modular Power Supply - Black

Fully-Modular 80 Plus Gold 650 Watt Power Supply, Premium Electronics, 7 Year Guarantee and Quiet 135 mm FDB Fans

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Super Flower Leadex II 650W 80 Plus Gold Modular Power Supply - Black
 

Out of stock

£99.95

(3)
Cougar VTX 450W 80 Plus Bronze Power Supply - Black

Introducing the Cougar VTX Series of Power Supplies, aggressively priced units which provide reliable 80+ Bronze...

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Cougar VTX 450W 80 Plus Bronze Power Supply - Black
 

50+ In stock

£41.99

EVGA SuperNova G2 750W '80 Plus Gold' Modular Power...

The EVGA SuperNOVA 750 G2 has arrived! This power supply is 80 Plus Gold Rated, offers 750W of continuous power,...

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EVGA SuperNova G2 750W '80 Plus Gold' Modular Power Supply
 

Out of stock

£124.99

(4)
Cougar VTX 750W 80 Plus Bronze Power Supply - Black

Introducing the Cougar VTX Series of Power Supplies, aggressively priced units which provide reliable 80+ Bronze...

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Cougar VTX 750W 80 Plus Bronze Power Supply - Black
 

19 In stock

£62.99

Cougar GX-S 650W 80 Plus Gold Power Supply

GX-S is an 80-PLUS GOLD PSU with a compact design that will deliver consistent power even at 40°C/104°F ambient...

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Cougar GX-S 650W 80 Plus Gold Power Supply
 

20+ In stock

£72.95

Kolink Core Series 600W 80 Plus Certified Power Supply

80-Watt power supply with 600 watt power and two 6 + 2-pin PCI Express connectors

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Kolink Core Series 600W 80 Plus Certified Power Supply
 

50+ In stock

£34.99

EVGA 600W 80 Plus Power Supply (100-W1-0600-K3)

When building on a budget, the EVGA 600W 80 PLUS is a great choice at a low cost. Supporting 49A on a single +12V...

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EVGA 600W 80 Plus Power Supply (100-W1-0600-K3)
 

Out of stock

£48.95

Cougar VTX 650W 80 Plus Bronze Power Supply - Black

Introducing the Cougar VTX Series of Power Supplies, aggressively priced units which provide reliable 80+ Bronze...

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Cougar VTX 650W 80 Plus Bronze Power Supply - Black
Super Flower Platinum King 550W 80 Plus Platinum Power Supply - Black

The Super Flower Platinum King series are perfect for users looking for an efficiency vs price vs performance sweet...

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Super Flower Platinum King 550W 80 Plus Platinum Power Supply - Black
 

13 In stock

£74.99

Seasonic Focus Plus 850W 80 Plus Gold Modular Power Supply

If you are looking for your next compact system build ideas the FOCUS+ Gold 850 watt power supplies may be the ideal...

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Seasonic Focus Plus 850W 80 Plus Gold Modular Power Supply
 

10+ In stock

£124.99

Kolink Core Series 500W 80 Plus Certified Power Supply

A particularly cost-effective 80 Plus power supply with 500 watt power and 6 + 2-pin PCI Express plug.

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Kolink Core Series 500W 80 Plus Certified Power Supply
 

50+ In stock

£28.99

(1)
EVGA Supernova G2 650W '80 Plus Gold' Modular Power...

The unbeatable performance of the EVGA SuperNOVA G2 power supply line is now available in 650 and 550 watt versions.

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EVGA Supernova G2 650W '80 Plus Gold' Modular Power Supply
 

Out of stock

£99.95

(2)
Corsair RM Series RMi 850 '80+ Gold' 850W Modular Powe...

Corsair RMi series power supplies give you extremely tight voltage control, virtually silent operation, and a fully...

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Corsair RM Series RMi 850 '80+ Gold' 850W Modular Power Supply (CP-9020083-UK)
 

5 In stock

£164.99

Super Flower Leadex II 750W 80 Plus Gold Modular Power Supply - Black

Fully-Modular 80 Plus Gold 750 Watt Power Supply, Premium Electronics, 7 Year Guarantee and Quiet 135 mm FDB Bearings

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Super Flower Leadex II 750W 80 Plus Gold Modular Power Supply - Black
 

Out of stock

£114.95

Kolink KL-400 400W '80 Plus Bronze' Power Supply

The Kolink KL series are 80 Plus Bronze certified power supply units aimed at the budget system build, offering...

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Kolink KL-400 400W '80 Plus Bronze' Power Supply
 

50+ In stock

£30.95

Super Flower Leadex Platinum 850W Fully Modular "80 Plus Platinu...

Super Flower, one of the worlds leading power supply manufacturers have unleashed a full Leadex Platinum range, all...

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Super Flower Leadex Platinum 850W Fully Modular "80 Plus Platinum" Power Supply - Black
 

10+ In stock

£144.95

EVGA 500W 80 Plus Power Supply (100-W1-0500-K3)

A great quality and value power supply from EVGA with three year warranty!

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EVGA 500W 80 Plus Power Supply (100-W1-0500-K3)
 

Out of stock

£44.99

Cougar STX 550W 80 Plus 230V EU Power Supply - Black

The Cougar STX power supply series have been introduced to offer reliable, certified power for your PC without...

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Cougar STX 550W 80 Plus 230V EU Power Supply - Black
 

50+ In stock

£44.99

Power Supplies

Find the Right PC Power Supply at Overclockers UK

If the motherboard is the heart of a computer, then the computer power supply unit is most definitely the lungs. While not in plain sight, the PC power supply unit is one of the most important parts of every computer, and one that should be considered carefully when building or buying a new PC. At Overclockers UK, we believe that buying quality components is essential to ensuring the longevity of your computer. With this in mind, we advocate buying a reliable and good quality computer power supply is key to running a stable PC. We stock a vast range of power supply units from leading manufacturers in the industry, including SuperFlower; Seasonic; Cougar; EVGA; Corsair; and be quiet!, to ensure that our customers have a choice when it comes to selecting a computer power supply.

Buying a PC power supply

There are a number of things to take into account when looking for a PC power supply. Firstly, it's important to know what a power supply unit actually does. A PSU does exactly what the name suggests – it supplies power. It converts the voltage of the power from an alternating current (AC) into a more usable direct current (DC) that is used by various PC components. Computers use switched-mode power supplies. These high-frequency switching mode computer power supplies are directly rectified and filtered to obtain a DC voltage. The DC is then switched on and off at a very high frequency and passed through a high-frequency transformer. The speed at which this switching occurs allows for transformers and capacitors to be greatly reduced in size, and greatly increases the efficiency of converting electrical power.

Next, you should understand a bit more about the wattage of a computer power supply. A PSU with a higher-wattage can supply more power, and a standard desktop power supply can put out between 200W – 1800W. But what you should keep in mind is that this is the maximum power that the PSU can handle. The power consumed by your computer is determined by the components and not the computer power supply. A PSU's wattage rating indicates not its own power consumption, but the maximum amount it can provide to your system.

Efficiency

When you buy a computer power supply, efficiency is one of the things that should be seriously considered. The efficiency of a pc power supply relates to how much power being pulled from the grid is successfully being converted from AC to DC. You should always strive to buy a power supply with at least 80% efficiency. The number one reason for this is that it puts less of a strain on the environment by having to generate less electricity. It would also result in less heat being produced which means there will be less fan noise, and you would spend less on cooling your PC. A by-product of both of these points is that you would save money on monthly energy bills. Take a look at our range of "80 Plus" certified power supply units to ensure that you're getting the most efficient power supply for your money. These certifications are further categorised into tiers – Bronze, Silver, Gold, Platinum and Titanium - that dictates their efficiency based on their rank.

Power Supply Units and More to Suit Any Need

At Overclockers UK, gaming and computing is our passion, and we go to great lengths to stock the largest range of cutting-edge hardware and software to suit your needs, with numerous budget options to cater for all. So if it's a Bronze, Silver, Gold, Platinum or even Titanium rated power supply unit that you're after, we've got you covered. Whether you're after a VR-ready PC or cables and adaptors for your PC setup, trust our dedicated team at Overclockers UK to find what you're looking for.

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