262 products found
Power Supplies - Product Filter
     
Corsair RMx Series RMx750 750W '80 Plus Gold' Modular ...

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

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Corsair RMx Series RMx750 750W '80 Plus Gold' Modular Power Supply (CP-9020179-UK)
 

10+ In stock

£124.99

(1)
-18%
Corsair RMx Series RMx650 650W '80 Plus Gold' Modular ...

CORSAIR RM650x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient...

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Corsair RMx Series RMx650 650W '80 Plus Gold' Modular Power Supply (CP-9020178-UK)
 

12 In stock

Was: £109.99 £89.99

Phanteks Power Combo Device - 2 PSU to 1 Motherboard PH-PWCOB_2P1M

Phanteks’ patented Power Combo is design to maximize your power output by allowing you to connect two power supplies...

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Phanteks Power Combo Device - 2 PSU to 1 Motherboard PH-PWCOB_2P1M
 

50+ In stock

£37.99

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)
 

2 In stock

£99.95

(4)
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

£314.99

(1)
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 -
 

6 In stock

£399.95

(2)
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

EVGA Supernova P2 650W 80 Plus Platinum Modular Power Supply

The unbeatable performance of the EVGA SuperNOVA P2 power supply line is now available in 650 watts.

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EVGA Supernova P2 650W 80 Plus Platinum Modular Power Supply
 

8 In stock

£99.95

Corsair TX850M 850W 80 Plus Gold Semi Modular Power Supply (CP-9...

The CORSAIR TX-M Series power supplies provide industrial build quality, 80 PLUS Gold efficiency, extremely tight...

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Corsair TX850M 850W 80 Plus Gold Semi Modular Power Supply (CP-9020130-UK)
 

10+ In stock

£104.99

Super Flower Leadex III 850W 80 PLUS Gold Modular Power Supply - Black

Fully modular 80 PLUS Gold PSU with 850 Watt output, Premium electronics, Two semi-passive levels, 7 Year guarantee...

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Super Flower Leadex III 850W 80 PLUS Gold Modular Power Supply - Black
 

10+ In stock

£112.99

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
 

9 In stock

£104.99

-19%
Corsair CX-M Series 650W 80 Plus Bronze Semi Modular Power Suppl...

CX Series™ Modular power supply units are an excellent choice for basic system builds and desktop PC computer...

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Corsair CX-M Series 650W 80 Plus Bronze Semi Modular Power Supply (CP-9020103-UK)
 

1 In stock

Was: £83.99 £67.99

Gigabyte AORUS P750 750W 80 Plus Gold Modular Power Supply

80 Plus Gold Rated, Fully Modular, High quality 100% Japanese Capacitors, Single +12V rail, 135mm 2 ball bearing...

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Gigabyte AORUS P750 750W 80 Plus Gold Modular Power Supply
 

15 In stock

£99.95

Seasonic Focus Plus 850W 80 Plus Platinum Modular Power Supply

The fully modular FOCUS+ Platinum 850 watt unit is based on the DC to DC Converter Design and its electric...

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Seasonic Focus Plus 850W 80 Plus Platinum Modular Power Supply
 

10+ In stock

£144.95

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

Corsair AXi Series AX1600i 1600W 80 Plus Titanium Digital Modula...

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

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

3 In stock

£479.99

Super Flower Leadex III 750W 80 PLUS Gold Modular Power Supply - Black

Fully modular 80 PLUS Gold PSU with 750 Watt output, Premium electronics, Two semi-passive levels, 7 Year guarantee...

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Super Flower Leadex III 750W 80 PLUS Gold Modular Power Supply - Black
 

20+ In stock

£99.95

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
 

47 In stock

£44.99

(1)
Gigabyte AORUS P850 850W 80 Plus Gold Modular Power Supply

80 Plus Gold Rated, Fully Modular, High quality 100% Japanese Capacitors, Single +12V rail, 135mm 2 ball bearing...

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Gigabyte AORUS P850 850W 80 Plus Gold Modular Power Supply
 

10+ In stock

£119.99

Corsair RMx Series RMx850 850W '80 Plus Gold' Modular ...

CORSAIR RM850x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient...

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Corsair RMx Series RMx850 850W '80 Plus Gold' Modular Power Supply (CP-9020180-UK)
 

10+ In stock

£149.99

Seasonic Focus Plus 750W 80 Plus Platinum Modular Power Supply

The fully modular FOCUS+ Platinum 750 watt unit is based on the DC to DC Converter Design and its electric...

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Seasonic Focus Plus 750W 80 Plus Platinum Modular Power Supply
 

Out of stock

£124.99

-16%
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

Was: £124.99 £104.99

Corsair TX650M 650W 80 Plus Gold Semi Modular Power Supply (CP-9...

CORSAIR TX-M Series, TX650M, 650 Watt (650W), Active PFC, 80 PLUS Gold Certified, Semi-Modular, 4th Generation Intel...

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Corsair TX650M 650W 80 Plus Gold Semi Modular Power Supply (CP-9020132-UK)
 

5 In stock

£98.99

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
 

15 In stock

£41.99

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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