266 products found
Power Supplies - Product Filter
     
-43%
Seasonic Prime Ultra Snow Silent 650W 80 Plus Platinum Modular Po...

Its ultra-high efficiency and outstanding performance are the fine results of Seasonic’s continuous commitment to...

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Seasonic Prime Ultra Snow Silent 650W 80 Plus Platinum Modular Power Supply
 

20+ In stock

Was: £164.99 £92.99

-24%
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)
 

20+ In stock

Was: £124.99 £94.99

(1)
Corsair RM Series RM750 750W '80 Plus Gold' Modular Po...

80 PLUS Gold Certification, Low Noise Operation, 105°C-Rated Capacitors, Zero RPM Fan Mode, Fully Modular, SLI Ready,...

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Corsair RM Series RM750 750W '80 Plus Gold' Modular Power Supply (CP-9020195-UK)
 

8 In stock

£99.95

Seasonic Prime Ultra Platinum 1000W 80 Plus Platinum Modular Powe...

Its ultra-high efficiency and outstanding performance are the fine results of Seasonic’s continuous commitment to...

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Seasonic Prime Ultra Platinum 1000W 80 Plus Platinum Modular Power Supply
 

10+ In stock

£224.99

Super Flower Leadex III 550W 80 PLUS Gold Modular Power Supply - Black

Fully modular 80 PLUS Gold PSU with 550 Watt output, Premium electronics, Two semi-passive levels, 7 Year guarantee...

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Super Flower Leadex III 550W 80 PLUS Gold Modular Power Supply - Black
 

Out of stock

£79.99

(1)
-31%
Kolink KL-1000M 1000W 80 Plus Bronze Modular Power Supply

Power adapter with 1,000 watts of power, fully modular cable management, four PCIe ports, 80Plus Bronze certificate,...

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Kolink KL-1000M 1000W 80 Plus Bronze Modular Power Supply
 

20+ In stock

Was: £79.99 £54.95

-33%
Seasonic Prime Ultra Snow Silent 750W 80 Plus Titanium Modular Po...

Its ultra-high efficiency and outstanding performance are the fine results of Seasonic’s continuous commitment to...

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Seasonic Prime Ultra Snow Silent 750W 80 Plus Titanium Modular Power Supply
 

10+ In stock

Was: £209.99 £139.99

Corsair RM Series RM850 850W '80 Plus Gold' Modular Po...

80 PLUS Gold Certification, Low Noise Operation, 105°C-Rated Capacitors, Zero RPM Fan Mode, Fully Modular, SLI Ready,...

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Corsair RM Series RM850 850W '80 Plus Gold' Modular Power Supply (CP-9020196-UK)
 

Out of stock

£109.99

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
 

Out of stock

£209.99

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

£34.99

(1)
Free Items Kolink Enclave 500W 80 Plus Gold Modular Power Supply

Premium 80 PLUS Gold power supply rated for 500 Watts output, Fully modular cable management, Two 6-Pin PCIe connectors

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Kolink Enclave 500W 80 Plus Gold Modular Power Supply
 

20+ In stock

£59.99

-15%
Seasonic Core Gold GC-650 650W 80+ Gold Power Supply

650 Watt power supply from Seasonic, Powerful 12V 54A rail, Excellent efficiency with 80 PLUS Gold certification,...

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

20+ In stock

Was: £79.99 £67.99

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 warranty...

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

1 In stock

£99.95

-28%
Corsair RMi Series RM650i 650W '80 Plus Gold' Modular ...

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

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Corsair RMi Series RM650i 650W '80 Plus Gold' Modular Power Supply (CP-9020081-UK)
 

20+ In stock

Was: £139.99 £99.95

Corsair RM Series RM650 650W '80 Plus Gold' Modular Po...

80 PLUS Gold Certification, Low Noise Operation, 105°C-Rated Capacitors, Zero RPM Fan Mode, Fully Modular, SLI Ready,...

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Corsair RM Series RM650 650W '80 Plus Gold' Modular Power Supply (CP-9020194-UK)
 

Out of stock

£89.99

Free Items Kolink Enclave 600W 80 Plus Gold Modular Power Supply

Premium 80 PLUS Gold power supply rated for 600 Watts output, Fully modular cable management, Four 6+2-Pin PCIe...

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Kolink Enclave 600W 80 Plus Gold Modular Power Supply
 

20+ In stock

£64.99

-40%
CoolerMaster V1300 1300W 80 Plus Platinum Modular Power Supply

80 PLUS Platinum Certified, Thermal Regulation Mode (TRM), Fully Modular, 16 AWG PCI-e Cables, Single/Multi Rail...

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CoolerMaster V1300 1300W 80 Plus Platinum Modular Power Supply
 

2 In stock

Was: £269.99 £159.95

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
 

Out of stock

£314.99

(1)
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)
 

9 In stock

£142.99

Seasonic Snow Silent 750W '80 Plus Platinum' Modular Po...

. What impresses people about the Snow Silent 750 is not only the eggshell white paint that provides enthusiasts with...

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Seasonic Snow Silent 750W '80 Plus Platinum' Modular Power Supply - White
 

9 In stock

£169.99

(1)
-16%
Seasonic Core Gold GM-650 650W 80+ Gold Modular Power Supply

High-performance 650 Watt power supply, High efficiency with 80 PLUS Gold certification, Powerful 54 A single rail,...

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

20+ In stock

Was: £89.99 £74.99

-26%
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)
 

Out of stock

Was: £149.99 £109.99

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 GX-650 650W 80+ Gold Modular Power Supply

Powerful 650 Watt power supply, High efficiency thanks to 80 PLUS Gold certification, Powerful 54A rail, Modular...

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

10+ In stock

£104.99

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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