117 products found
Up to 800 Watts - Product Filter
     
be quiet! Straight Power 11 650W 80 Plus Gold Modular Power Supply

be quiet! Straight Power 11 650W raises the bar for systems that demand virtually inaudible operation without power...

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be quiet! Straight Power 11 650W 80 Plus Gold Modular Power Supply
 

10+ In stock

£114.95

(1)
Corsair TX550M 550W 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 TX550M 550W 80 Plus Gold Semi Modular Power Supply (CP-9020133-UK)
 

7 In stock

£85.99

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

£79.99

CoolerMaster MasterWatt 550 - 550W 80 Plus Bronze Semi Modular Power ...

MasterWatt 550, 550W, 80 Plus Bronze, Semi-fanless, Semi Modular, 5 Year Warranty

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CoolerMaster MasterWatt 550 - 550W 80 Plus Bronze Semi Modular Power Supply
 

Out of stock

£54.95

Seasonic Focus SGX 650W 80 Plus Gold Modular SFX Power Supply

The long-awaited new line of Seasonic's FOCUS SGX is versatile in its application and powerful with a small footprint.

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Seasonic Focus SGX 650W 80 Plus Gold Modular SFX Power Supply
 

1 In stock

£129.95

Super Flower Leadex Titanium 750W Fully Modular "80 Plus Titaniu...

Super Flower, one of the worlds leading power supply manufacturers have unleashed the Leadex Titanium range, with...

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

5 In stock

£177.95

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

Phanteks AMP 650W 80 Plus Gold Modular Power Supply

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

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Phanteks AMP 650W 80 Plus Gold Modular Power Supply
 

20+ In stock

£96.95

Corsair RMx Series RMx550 550W '80 Plus Gold' Modular ...

CORSAIR RM550x series power supplies are built with the highest quality components to deliver 80 PLUS Gold efficient...

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Corsair RMx Series RMx550 550W '80 Plus Gold' Modular Power Supply (CP-9020177-UK)
 

5 In stock

£94.99

-7%
Silverstone SST-SX650-G SFX 650W 80 Plus Gold Modular Power Supply

The SX500-G and SX650-G are yet another evolutionary step toward perfecting this small form factor power supply...

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Silverstone SST-SX650-G SFX 650W 80 Plus Gold Modular Power Supply
 

6 In stock

Was: £114.95 £105.95

be quiet! Dark Power Pro P11 650W '80 Plus Platinum' Mod...

Dark Power Pro 11 is be quiet!’s most advanced PSU ever, delivering 80PLUS® Platinum efficiency, effortless Quad-GPU...

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be quiet! Dark Power Pro P11 650W '80 Plus Platinum' Modular Power Supply
 

4 In stock

£169.99

Phanteks AMP 550W 80 Plus Gold Modular Power Supply

Powerful 550 Watt power supply, High efficiency with 80 PLUS Gold certification, Powerful single rail with 45A,...

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Phanteks AMP 550W 80 Plus Gold Modular Power Supply
 

20+ In stock

£86.99

Free Items BitFenix Whisper M Series 750W 80 Plus Gold Modular Power Supply

As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.

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Bitfenix Whisper M Series 750W 80 Plus Gold Modular Power Supply
 

5 In stock

£99.95

Corsair TX750M 750W 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 TX750M 750W 80 Plus Gold Semi Modular Power Supply (CP-9020131-UK)
 

10+ In stock

£108.95

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

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 - White
 

3 In stock

£99.95

(2)
be quiet! Straight Power 11 750W 80 Plus Gold Modular Power Supply

be quiet! Straight Power 11 750W raises the bar for systems that demand virtually inaudible operation without power...

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be quiet! Straight Power 11 750W 80 Plus Gold Modular Power Supply
 

10+ In stock

£137.99

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

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

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

4 In stock

£74.99

Seasonic Prime Ultra Titanium 750W 80 Plus Titanium Modular Power...

The creation of the PRIME Series is a renewed testimony of SeaSonic's determination to push the limits of power...

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

8 In stock

£214.99

Seasonic Focus GX-750 750W 80+ Gold Modular Power Supply

Powerful 750 Watt power supply, High-efficiency thanks to 80 PLUS Gold certification, Powerful 70A single rail,...

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Seasonic Focus GX-750 750W 80+ Gold Modular Power Supply
 

10+ In stock

£114.95

Silverstone Essential 550W 80 Plus Gold Semi-Modular Power Supply

SilverStone created semi-modular enabled Essential Gold series power supplies to provide enthusiasts with affordable...

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Silverstone Essential 550W 80 Plus Gold Semi-Modular Power Supply
 

3 In stock

£72.95

Seasonic Core Gold GM-500 500W 80+ Gold Modular Power Supply

High-performance 500 Watt power supply, High efficiency with 80 PLUS Gold certification, Powerful 41A single rail,...

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Seasonic Core Gold GM-500 500W 80+ Gold Modular Power Supply
 

20+ In stock

£74.99

be quiet! Dark Power Pro P11 750W '80 Plus Platinum' Mod...

Dark Power Pro 11 is be quiet!’s most advanced PSU ever, delivering 80PLUS® Platinum efficiency, effortless Quad-GPU...

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be quiet! Dark Power Pro P11 750W '80 Plus Platinum' Modular Power Supply
 

3 In stock

£191.99

be quiet! SFX-L Power 600W 80 Plus Gold Modular Power Supply

Compact SFX-L PSU from from be quiet! 600 Watt total output & 50 A single rail, 80 Plus Gold certification, Fully...

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be quiet! SFX-L Power 600W 80 Plus Gold Modular Power Supply
 

Out of stock

£116.99

Seasonic Prime Ultra Platinum 750W 80 Plus Platinum Modular Power...

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 750W 80 Plus Platinum Modular Power Supply
 

1 In stock

£169.99

PSU up to 800 Watts

Power Supplies - The heart of every computer. Often overlooked and not given much thought when purchased, the power supply is one of the most important parts of your PC. Overclockers UK know that buying a reliable and good quality PSU is the key to a stable PC, which is why we offer a vast range of units from leading manufacturers such as SuperFlower, Seasonic, Cougar, EVGA, Corsair and be quiet!

In this section you will find all our PSU units with a wattage between 501W and 800W. These units are aimed at systems with at least one dedicated graphics card, with some of the higher wattage units supporting SLI or Crossfire setups, and will leave some room for overclocking your hardware too. This wattage range is the most popular at OcUK, with efficiencies up to 80+ Platinum available from a variety of manufacturers, such as the popular SuperFlower Leadex series.

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