83 products found
Semi-passive - 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)
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
 

3 In stock

£209.99

CoolerMaster MasterWatt 650 - 650W 80 Plus Bronze Semi Modular Power ...

MasterWatt 650, 650W, 80 Plus Bronze, Semi-fanless, Semi Modular, 5 Year Warranty

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CoolerMaster MasterWatt 650 - 650W 80 Plus Bronze Semi Modular Power Supply
 

20+ In stock

£64.99

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
 

5 In stock

£314.99

(1)
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
 

20+ In stock

£99.95

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
 

10+ In stock

£169.99

Seasonic Prime Ultra Titanium 850W 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 850W 80 Plus Titanium Modular Power Supply
 

Out of stock

£239.99

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 -
 

3 In stock

£399.95

(2)
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)
 

Bought to order

£479.99

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)
 

6 In stock

£149.99

Asus ROG STRIX 750W 80 Plus Gold Modular Power Supply

ROG Heatsinks, Dual Ball Fan Bearings, 80 Plus Gold Certification, Fully Modular, Cosmetic Customisation, 10 Year...

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ASUS ROG STRIX 750W 80 Plus Gold Modular Power Supply
 

6 In stock

£139.99

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

Corsair HXi Series HX1000i 1000W '80 Plus Platinum Digital ...

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

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Corsair HXi Series HX1000i 1000W '80 Plus Platinum Digital Modular Power Supply (CP-9020074-UK)
 

10+ In stock

£234.95

(1)
Corsair HXi Series HX750i 750W '80 Plus Platinum Digital Mo...

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

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

4 In stock

£174.95

(3)
Corsair HXi Series HX1200i 1200W '80 Plus Platinum' Di...

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

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

10+ In stock

£259.99

(1)
CoolerMaster MasterWatt 750 - 750W 80 Plus Bronze Semi Modular Power ...

MasterWatt 750, 750W, 80 Plus Bronze, Semi-fanless, Semi Modular, 5 Year Warranty

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CoolerMaster MasterWatt 750 - 750W 80 Plus Bronze Semi Modular Power Supply
 

6 In stock

£74.99

Phanteks Revolt X 1000W 80 Plus Platinum Modular Power Supply

Single PSU for dual motherboard systems, control each motherboard independently, manufactured from premium materials,...

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Phanteks Revolt X 1000W 80 Plus Platinum Modular Power Supply
 

3 In stock

£214.99

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
 

20+ In stock

£79.99

Phanteks Revolt X 1200W 80 Plus Platinum Modular Power Supply

Single PSU for dual motherboard systems, control each motherboard independently, manufactured from premium materials,...

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Phanteks Revolt X 1200W 80 Plus Platinum Modular Power Supply
 

Out of stock

£234.95

Super Flower Leadex III 650W 80 Plus Gold Modular Power Supply - Black

Fully modular 80 Plus Gold PSU with 650 Watt output, Premium electronics, Two semi-passive levels, 7 Year guarantee...

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Super Flower Leadex III 650W 80 Plus Gold Modular Power Supply - Black
 

20+ In stock

£89.99

Corsair Professional Series HX 1000W '80 Plus Platinum'...

Corsair HX Series, HX1000, 1000 Watt (1000W), Active PFC, 80 PLUS Platinum Certified, Fully Modular, 4th Generation...

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Corsair Professional Series HX 1000W '80 Plus Platinum' Modular Power Supply (CP-9020139-UK)
 

7 In stock

£199.99

Corsair HXi Series HX850i 850W '80 Plus Platinum Digital Mo...

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

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Corsair HXi Series HX850i 850W '80 Plus Platinum Digital Modular Power Supply (CP-9020073-UK)
 

7 In stock

£194.99

(4)
Corsair RMi Series RM1000i 1000W '80 Plus Gold' Modula...

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

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Corsair RMi Series RM1000i 1000W '80 Plus Gold' Modular Power Supply (CP-9020084-UK)
 

4 In stock

£194.99

Corsair RMi Series RM850i 850W '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 RM850i 850W '80 Plus Gold' Modular Power Supply (CP-9020083-UK)
 

5 In stock

£164.99

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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