116 products found
Semi-passive - Product Filter
     
Super Flower Leadex II 850W 80 Plus Gold Modular Power Supply - Black

Fully-Modular 80 Plus Gold 850 Watt Power Supply, Premium Electronics, 7 Year Guarantee and Quiet 135 mm FDB Fans

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Super Flower Leadex II 850W 80 Plus Gold Modular Power Supply - Black
 

Out of stock

£129.95

(1)
Super Flower Leadex II 650W 80 Plus Gold Modular Power Supply - Black

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 - Black
 

Out of stock

£99.95

(3)
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
 

Out of stock

£124.99

(4)
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

£124.99

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

£164.99

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
 

Out of stock

£144.95

Super Flower Leadex II 750W 80 Plus Gold Modular Power Supply - Black

Fully-Modular 80 Plus Gold 750 Watt Power Supply, Premium Electronics, 7 Year Guarantee and Quiet 135 mm FDB Bearings

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Super Flower Leadex II 750W 80 Plus Gold Modular Power Supply - Black
 

Out of stock

£114.95

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
 

10 In stock

£94.99

Corsair HX1200i 1200W '80 Plus Platinum' Digital Modul...

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

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Corsair HX1200i 1200W '80 Plus Platinum' Digital Modular Power Supply (CP-9020070-UK)
 

4 In stock

£259.99

(1)
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)
 

7 In stock

£194.99

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)
 

6 In stock

£174.95

(3)
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
 

Out of stock

£159.95

Corsair RM Series RM1000X '80+ Gold' 1000W Modular Pow...

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

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Corsair RM Series RM1000X '80+ Gold' 1000W Modular Power Supply (CP-9020094-UK)
 

4 In stock

£184.99

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
 

Out of stock

£137.99

(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 -
 

4 In stock

£419.99

(2)
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)
 

Out of stock

£105.95

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

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)
 

Out of stock

£224.99

(1)
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)
 

2 In stock

£194.99

(2)
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

£89.99

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)
EVGA SuperNova G2 1000W '80 Plus Gold' Modular Powe...

The EVGA SuperNOVA 1000 G2 has arrived! This power supply is 80 Plus Gold Rated, offers 1000W of continuous power,...

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EVGA SuperNova G2 1000W '80 Plus Gold' Modular Power Supply
 

Out of stock

£204.95

(5)
Corsair SF Series 600W 80 Plus Gold Modular SFX Power Supply (CP...

SF Series power supplies bring legendary Corsair performance and reliability to the SFX small form factor standard.

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Corsair SF Series 600W 80 Plus Gold Modular SFX Power Supply (CP-9020105-UK)
 

4 In stock

£116.99

EVGA SuperNova P2 1000W '80 Plus Platinum' Modular ...

The EVGA SuperNOVA 1000W Platinum has arrived! This power supply is 80 Plus Platinum Rated, offers 1000W of...

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EVGA SuperNova P2 1000W '80 Plus Platinum' Modular Power Supply (220-P2-1000-X3)
 

Out of stock

£239.99

(2)

Semi-passive Power Supplies

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!

Semi-Passive power supplies aim to offer the best of both worlds when it comes to silence and performance. They work by operating in a fanless mode up to a certain wattage load, allowing for completely silent operation. Once the unit hits the specified load (usually around 50%) the fan will spin up to cool the unit, although this is still barely audible. As these units become more efficient, the power supplies can operate at higher and higher loads without requiring the fan, leading to an extremely quiet experience. At OcUK we have a wide range of Semi-passive power supplies available, including the complete SuperFlower Leadex range, and selected EVGA SuperNova units.

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