312 products found
Power Supplies - Product Filter
     
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

£38.99

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
 

Out of stock

£32.99

 
Super Flower Golden Green HX 550W "80 Plus Gold" Power Supp...

SuperFlower one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Golden Green HX 550W "80 Plus Gold" Power Supply - Black
 

Out of stock

£65.99

(4)
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)
 

14 In stock

£93.95

(4)
XFX XTR Series 850W 80 Plus Gold Fully Modular Power Supply

Designed for serious gamers and DIY professionals, the XFX XTR Series 850W Modular 80 Plus Gold power supply delivers...

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XFX XTR Series 850W 80 Plus Gold Fully Modular Power Supply
 

10+ In stock

£127.99

Super Flower Leadex GOLD 850W Fully Modular "80 Plus Gold" ...

Super Flower, one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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

Out of stock

£128.99

(5)
Super Flower Leadex GOLD 750W Fully Modular "80 Plus Gold" ...

Super Flower, one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Leadex GOLD 750W Fully Modular "80 Plus Gold" Power Supply - Black
 

10+ In stock

£106.99

(6)
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
 

10+ In stock

£119.99

(3)
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)
 

3 In stock

£48.95

XFX XTR Series 750W 80 Plus Gold Fully Modular Power Supply

Designed for serious gamers and DIY professionals, the XFX XTR Series 750W Modular 80 Plus Gold power supply delivers...

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XFX XTR Series 750W 80 Plus Gold Fully Modular Power Supply
 

10+ In stock

£104.99

(1)
Super Flower Golden Green HX 450W "80 Plus Gold" Power Supp...

SuperFlower one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Golden Green HX 450W "80 Plus Gold" Power Supply - Black
 

20+ In stock

£55.99

Corsair Builder Series CX 600W V2 '80 Plus Bronze' Pow...

Builder Series CX600 V2 PSUs deliver the power needed for medium specification home or office PCs that do not have...

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Corsair Builder Series CX 600W V2 '80 Plus Bronze' Power Supply (CP-9020048-UK)
 

Out of stock

£66.95

(4)
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
 

21 In stock

£37.99

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)
 

10+ In stock

£159.95

XFX XTR 1050W Black Edition 80 Plus Gold Modular Power Suppl...

80 Plus Gold certified means that this XFX PSU has a power efficiency of up to 90%. Compare that to non-certified...

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XFX XTR 1050W Black Edition 80 Plus Gold Modular Power Supply - Black
 

2 In stock

£147.95

(4)
-20%
Super Flower Golden Green HX 350W "80 Plus Gold" Power Supp...

SuperFlower one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Golden Green HX 350W "80 Plus Gold" Power Supply - Black
 

50+ In stock

Was: £49.99 £39.95

(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)
EVGA Supernova GS 550W '80 Plus Gold' Modular Power...

Introducing the EVGA SuperNOVA 650 GS and 550 GS power supplies. These power supplies take the award-winning features...

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EVGA Supernova GS 550W '80 Plus Gold' Modular Power Supply
 

20+ In stock

£83.99

(1)
 
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

£139.99

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

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-KR)
 

1 In stock

£44.99

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
 

Out of stock

£59.99

Corsair RM Series RM850X '80+ Gold' 850W Modular Power...

Corsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified...

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Corsair RM Series RM850X '80+ Gold' 850W Modular Power Supply (CP-9020093-UK)
 

10+ In stock

£132.95

(1)
-10%
Corsair RM Series RMi 1000 '80+ Gold' 1000W Modular Po...

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 1000 '80+ Gold' 1000W Modular Power Supply (CP-9020084-UK)
 

10+ In stock

Was: £184.99 £164.99

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
 

1 In stock

£95.99

Cougar STX 650W 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 650W 80 Plus 230V EU Power Supply - Black
 

50+ In stock

£46.99

Corsair HX750i 750W '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 HX750i 750W '80 Plus Platinum Digital Modular Power Supply (CP-9020072-UK)
 

10+ In stock

£147.95

(3)
EVGA Supernova GS 650W '80 Plus Gold' Modular Power...

Introducing the EVGA SuperNOVA 650 GS and 550 GS power supplies. These power supplies take the award-winning features...

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

Out of stock

£94.99

(1)
 
Super Flower Leadex GOLD 650W Fully Modular "80 Plus Gold" ...

Super Flower, one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Leadex GOLD 650W Fully Modular "80 Plus Gold" Power Supply - Black
 

Out of stock

£95.99

(10)
Corsair Builder Series CX 430W V2 '80 Plus Bronze' Pow...

The Builder Series CX430 V2 is the ideal choice for PC builders and upgraders who need a great value, quiet and...

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Corsair Builder Series CX 430W V2 '80 Plus Bronze' Power Supply (CP-9020046-UK)
 

9 In stock

£48.95

(5)
EVGA 500W 80 Plus Bronze Power Supply (100-B1-0500-K3)

With price and performance in mind, the EVGA 500B is the best value power supply for your next build on a budget.

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EVGA 500W 80 Plus Bronze Power Supply (100-B1-0500-K3)
 

20+ In stock

£51.95

Super Flower Golden Green HX 650W "80 Plus Gold" Power Supp...

SuperFlower one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Golden Green HX 650W "80 Plus Gold" Power Supply - Black
 

20+ In stock

£79.99

(4)
 
Silverstone SFX-L V2.0 500W '80 Plus Gold' Fully Modular P...

SilverStone has released a “lengthened” variation of the SFX form factor called, SFX-L. With 30mm of added depth, a...

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Silverstone SFX-L V2.0 500W '80 Plus Gold' Fully Modular Power Supply
 

20+ In stock

£80.99

(2)
Super Flower Golden Green HX 750W "80 Plus Gold" Semi-Modul...

SuperFlower one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Golden Green HX 750W "80 Plus Gold" Semi-Modular Power Supply - Black
 

20+ In stock

£86.99

(2)
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

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 -
 

4 In stock

£379.99

(2)
EVGA SuperNova P2 850W '80 Plus Platinum' Modular P...

The unbeatable performance of the EVGA SuperNOVA P2 power supply line is now available in 850 watts.

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EVGA SuperNova P2 850W '80 Plus Platinum' Modular Power Supply
 

6 In stock

£149.99

XFX TS 430W 80 Plus Bronze Power Supply - Black ** 5 YEAR WA...

The XFX TS Series 430W is an 80 Plus Bronze certified PSU that combines great performance, innovative design, and the...

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XFX TS 430W 80 Plus Bronze Power Supply - Black ** 5 YEAR WARRANTY OCUK EXCLUSIVE **
 

Out of stock

£36.95

(2)
Corsair Builder Series CX 750W V2 '80 Plus Bronze' Pow...

The CX750 is 80 PLUS® Bronze certified for excellent efficiency, and like all our CX series PSUs, is an ideal...

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Corsair Builder Series CX 750W V2 '80 Plus Bronze' Power Supply (CP-9020015-UK)
 

8 In stock

£84.95

(3)
Corsair CS650M 650W Semi-Modular 80+ GOLD Certified Power Supply...

The Corsair CS MODULAR Series deliver 80 Plus Gold-rated efficiency and feature flat black modular cables help ensure...

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Corsair CS650M 650W Semi-Modular 80+ GOLD Certified Power Supply (CP-9020077-UK)
 

20+ In stock

£84.95

(3)
Super Flower Leadex GOLD 550W Fully Modular '80 Plus Gold' ...

Super Flower, one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Leadex GOLD 550W Fully Modular '80 Plus Gold' Power Supply - Black
 

Out of stock

£79.99

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

£26.99

LMS Data 8 Way UK Plug Extension with Surge Protection BSI Approved

Complete with BSI approved 13amp fuse for high device loads, integral illuminated on/off rocker switch and a generous...

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LMS Data 8 Way UK Plug Extension with Surge Protection BSI Approved
 

79 In stock

£6.95

Corsair RM Series RM750X '80+ Gold' 750W Modular Power...

Corsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified...

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Corsair RM Series RM750X '80+ Gold' 750W Modular Power Supply (CP-9020092-UK)
 

10+ In stock

£124.99

Corsair Builder Series CX 500W V2 '80 Plus Bronze' Pow...

The Corsair Builder Series CX500 PSU is designed for worry-free compatibility for your home desktop PC system build...

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Corsair Builder Series CX 500W V2 '80 Plus Bronze' Power Supply (CP-9020047-UK)
 

9 In stock

£57.95

(5)
Super Flower Leadex Platinum 650W 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 650W Fully Modular "80 Plus Platinum" Power Supply - Black
 

10+ In stock

£114.95

(1)
 
Super Flower Leadex GOLD 1000W Fully Modular "80 Plus Gold"...

Super Flower, one of the worlds leading power supply manufacturers is now available at Overclockers UK, with PSU's...

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Super Flower Leadex GOLD 1000W Fully Modular "80 Plus Gold" Power Supply - Black
 

Out of stock

£174.95

(3)
EVGA BQ 650W 80 Plus Bronze Semi Modular Power Supply

Introducing the next generation in value; the EVGA BQ Series.

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EVGA BQ 650W 80 Plus Bronze Semi Modular Power Supply
 

20+ In stock

£69.95

Corsair RM Series RM650X '80+ Gold' 650W Modular Power...

Corsair RMx series power supplies give you extremely tight voltage control, quiet operation, Gold-certified...

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Corsair RM Series RM650X '80+ Gold' 650W Modular Power Supply (CP-9020091-UK)
 

10+ In stock

£101.99

     
  BUZZ
XFX TS 430W 80 Plus Bronze Power Supply -... XFX TS 430W 80 Plus Bronze Power Supply - Black ** 5 YEAR WARRANTY OCUK EXCLUSIVE **
Rik Review 30 Oct 2016 I run a minimal pc (cpu, 2xram, gtx950 and an m.2 ssd.) This psu is more than up for the job and is quiet too. Good PSU, so far. Only time will tell I guess but I have faith in XFX. more...
Cougar VTX 550W 80 Plus Bronze Power... Cougar VTX 550W 80 Plus Bronze Power Supply - Black
anime679 Review 29 Oct 2016 Great so far, no noise at all, perfect budget psu for higher end graphics cards more...
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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