276 products found
Power Supplies - Product Filter
     
-24%
Corsair RMx 750w 80 Plus Gold Modular Power Supply (CP-9020179-UK)

CORSAIR RM750x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient...

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Corsair RMx 750w 80 Plus Gold Modular Power Supply (CP-9020179-UK)
 

20+ In stock

Was: £124.99 £94.99

(1)
Asus ROG Thor 850W 80 Plus Platinum Modular Power Supply

ROG Thor series extends premium ROG brand to PSU product segment and features ROG heatsinks, dust-resistant...

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Asus ROG Thor 850W 80 Plus Platinum Modular Power Supply
 

10+ In stock

£209.99

-12%
Asus ROG Thor 1200W 80 Plus Platinum Modular Power Supply

ROG Thor series extends premium ROG brand to PSU product segment and features ROG heatsinks, dust-resistant...

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Asus ROG Thor 1200W 80 Plus Platinum Modular Power Supply
 

10+ In stock

Was: £314.99 £274.99

Kolink KL-500M 500W 80 Plus Bronze Modular Power Supply

The Kolink KL Modular series are 80 Plus Bronze certified semi modular power supply units aimed at the budget system...

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Kolink KL-500M 500W 80 Plus Bronze Modular Power Supply
 

35 In stock

£44.99

(1)
EVGA SuperNova G2 850W '80 Plus Gold' Modular Power...

The EVGA SuperNOVA 850 G2 has arrived! This power supply is 80 Plus Gold Rated, offers 850W of continuous power,...

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EVGA SuperNova G2 850W '80 Plus Gold' Modular Power Supply
 

10+ In stock

£137.99

(1)
Seasonic Focus Plus 550W 80 Plus Gold Modular Power Supply

If you are looking for your next compact system build ideas the FOCUS+ Gold 550 watt power supplies may be the ideal...

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Seasonic Focus Plus 550W 80 Plus Gold Modular Power Supply
 

20+ In stock

£82.99

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)
 

16 In stock

£99.95

(4)
Antec EarthWatts Gold Pro 650W 80 Plus Gold Modular Power Supply

Get the power you need, save money and help protect the environment with Antec’s EarthWatts GOLD PRO!

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Antec EarthWatts Gold Pro 650W 80 Plus Gold Modular Power Supply
 

6 In stock

£79.99

Seasonic Focus Plus 750W 80 Plus Gold Modular Power Supply

If you are looking for your next compact system build ideas the FOCUS+ Gold 750 watt power supplies may be the ideal...

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Seasonic Focus Plus 750W 80 Plus Gold Modular Power Supply
 

10+ In stock

£104.99

-31%
Kolink Continuum 1200W 80 Plus Platinum Modular Power Supply

High quality 80 Plus Platinum power supply with gigantic 1,200 watt output + 12 PCIe connectors and five years warranty

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Kolink Continuum 1200W 80 Plus Platinum Modular Power Supply
 

10+ In stock

Was: £174.95 £119.99

Corsair SF Series 750W 80 Plus Platinum Modular SFX Power Supply...

The CORSAIR SF750 80 PLUS Platinum SFX Power Supply is an extraordinarily power-dense PSU, ready to power the most...

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Corsair SF Series 750W 80 Plus Platinum Modular SFX Power Supply (CP-9020186-UK)
 

5 In stock

£142.99

Corsair AX1200i Digital ATX '80 Plus Platinum' Modular...

The AX1200i is certified 80 PLUS® Platinum, which results in lower heat generation and a quieter fan profile.

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Corsair AX1200i Digital ATX '80 Plus Platinum' Modular Power Supply (CP-9020008-UK)
 

10+ In stock

£329.99

(7)
be quiet! Pure Power 11 600W 80 Plus Gold Modular Power Supply

Pure Power 11 600W CM offers peerless dependability and best-in-class features.

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be quiet! Pure Power 11 600W 80 Plus Gold Modular Power Supply
 

20+ In stock

£82.99

Free Items 8Pack Super Flower Leadex Platinum '8 Pack Edition' 2...

The collaboration of Super Flower with the world's number 1 overclocker, the multiple world record holder 'Ian "8...

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Super Flower Leadex Platinum '8 Pack Edition' 2000W Fully Modular "80 Plus Platinum" Power Supply -
 

1 In stock

£419.99

(2)
Kolink KL-700M 700W 80 Plus Bronze Modular Power Supply

The Kolink KL Modular series are 80 Plus Bronze certified semi modular power supply units aimed at the budget system...

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Kolink KL-700M 700W 80 Plus Bronze Modular Power Supply
 

20+ In stock

£58.99

(2)
Seasonic Focus Plus 650W 80 Plus Gold Modular Power Supply

If you are looking for your next compact system build ideas the FOCUS+ Gold 650 watt power supplies may be the ideal...

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Seasonic Focus Plus 650W 80 Plus Gold Modular Power Supply
 

20+ In stock

£94.99

Kolink KL-600M 600W 80 Plus Bronze Modular Power Supply

The Kolink KL Modular series are 80 Plus Bronze certified semi modular power supply units aimed at the budget system...

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Kolink KL-600M 600W 80 Plus Bronze Modular Power Supply
 

50+ In stock

£49.99

Corsair Professional Series HX 1200W '80 Plus Platinum'...

Corsair HX Series, HX1200, 1200 Watt (1200W), Active PFC, 80 PLUS Platinum Certified, Fully Modular, 4th Generation...

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Corsair Professional Series HX 1200W '80 Plus Platinum' Modular Power Supply (CP-9020140-UK)
 

9 In stock

£224.99

Corsair HX850i 850W '80 Plus Platinum Digital Modular Power...

HXi Series power supplies give you extremely tight voltage control, virtually silent operation, and a fully modular...

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Corsair HX850i 850W '80 Plus Platinum Digital Modular Power Supply (CP-9020073-UK)
 

10+ In stock

£194.99

(3)
Kolink KL-SFX450 450W 80 Plus Bronze Efficient SFX Power Supply

Enjoy reliable yet competitively priced power in your SFX system with Kolink SFX Power Supplies!

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Kolink KL-SFX450 450W 80 Plus Bronze Efficient SFX Power Supply
 

14 In stock

£47.99

Corsair HX1000i 1000W '80 Plus Platinum Digital Modular Pow...

HXi Series power supplies give you extremely tight voltage control, virtually silent operation, and a fully modular...

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Corsair HX1000i 1000W '80 Plus Platinum Digital Modular Power Supply (CP-9020074-UK)
 

10+ In stock

£234.95

(1)
Corsair AX1600i 1600W 80 Plus Titanium Digital Modular Power Sup...

The CORSAIR AX1600i is the ultimate digital ATX power supply, built using only the best components and...

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Corsair AX1600i 1600W 80 Plus Titanium Digital Modular Power Supply (CP-9020087-UK)
 

Out of stock

£479.99

Seasonic Focus Plus 550W 80 Plus Platinum Modular Power Supply

The fully modular FOCUS+ Platinum 550 watt unit is based on the DC to DC Converter Design and its electric...

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Seasonic Focus Plus 550W 80 Plus Platinum Modular Power Supply
 

20+ In stock

£96.95

(1)
OcUK Value UK Mains to C5 Mains Lead (Clover Leaf)

The C5 to UK mains cable, more commonly know as a clover leaf lead

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OcUK Value UK Mains to C5 Mains Lead (Clover Leaf)
 

20 In stock

£2.99

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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