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282 Items found
Seasonic Core Gold GM-650 650W 80 Gold Modular Power Supply
CA-06Y-SS
High-performance 650 Watt power supply, High efficiency with 80 PLUS Gold certification, Powerful 54 A single rail, Partial modular cable management with flat cables, 7 Year manufacturer's guarantee
£79.99 (incl. VAT)
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Seasonic Core Gold GC-650 650W 80 Gold Power Supply
CA-070-SS
650 Watt power supply from Seasonic, Powerful 12V 54A rail, Excellent efficiency with 80 PLUS Gold certification, Quiet and temperature-controlled 120mm fan
£79.99 (incl. VAT)
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Kolink Core S Series 500W 80 Plus Certified Power Supply
CA-05S-KK
500 Watt PSU from Kolink, 80 Plus Certified, low cost power solution, fully sleeved cables, 1 x 6+2-Pin PCI-E
£37.99 (incl. VAT)
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Bitfenix Whisper M Series 750W 80 Plus Gold Modular Power Supply
CA-22C-BX
As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.
£99.95 (incl. VAT)
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Bitfenix Whisper M Series 850W 80 Plus Gold Modular Power Supply
CA-22D-BX
As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.
£114.95 (incl. VAT)
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be quiet System Power 9 600W 80 Plus Bronze Power Supply
CA-136-BQ
Specially designed by be quiet! with the price-concious PC builder in mind: System Power 9 600W offers renowned be quiet! performance and quietness.
£64.99 (incl. VAT)
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Super Flower Leadex III 550W 80 PLUS Gold Modular Power Supply - Black
CA-05Z-SF
Fully modular 80 PLUS Gold PSU with 550 Watt output, Premium electronics, Two semi-passive levels, 7 Year guarantee and quiet 135 mm FDB fan
£79.99 (incl. VAT)
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Bitfenix Whisper M Series 650W 80 Plus Gold Modular Power Supply
CA-22B-BX
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As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.
£89.99 (incl. VAT)
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Bitfenix Whisper M Series 450W 80 Plus Gold Modular Power Supply
CA-229-BX
As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.
£66.95 (incl. VAT)
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Bitfenix Whisper M Series 550W 80 Plus Gold Modular Power Supply
CA-22A-BX
As the name suggests the Bitfenix Whisper is an extremely silent power supply with an 80+ Gold Certified efficiency.
£74.99 (incl. VAT)
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be quiet Straight Power 11 450W 80 Plus Gold Modular Power Supply
CA-126-BQ
be quiet! Straight Power 11 450W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.
£89.99 (incl. VAT)
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be quiet Straight Power 11 550W 80 Plus Gold Modular Power Supply
CA-127-BQ
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be quiet! Straight Power 11 550W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.
£89.99 (incl. VAT)
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be quiet Straight Power 11 650W 80 Plus Gold Modular Power Supply
CA-128-BQ
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be quiet! Straight Power 11 650W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.
£94.99 (incl. VAT)
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be quiet! Straight Power 11 750W 80 Plus Gold Modular Power Supply
CA-129-BQ
be quiet! Straight Power 11 750W raises the bar for systems that demand virtually inaudible operation without power quality compromises. This PSU is clearly the best choice for super silent systems.
£136.00 (incl. VAT)
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Bitfenix Formula Series 750W 80 Plus Gold Power Supply
CA-230-BX
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80 Plus Gold power supply with four +12 Volt rails, Extensive failsafes, DC-DC technology and extra quiet 120 mm fan.
£82.99 (incl. VAT)
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be quiet Dark Power Pro P11 550W 80 Plus Platinum Modular Power Supply
CA-109-BQ
Dark Power Pro 11 is be quiet!’s most advanced PSU ever, delivering 80PLUS® Platinum efficiency, effortless Quad-GPU support, and unmatched silence.
£119.99 (incl. VAT)
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be quiet SFX Power 2 400W 80 Plus Bronze SFX Power Supply
CA-087-BQ
SFX Power 2, be quiet!’s upgraded high-power compact PSU, gives you more for your mini or media PC.
£67.99 (incl. VAT)
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be quiet TFX Power 2 300W 80 Plus Bronze TFX Power Supply
CA-089-BQ
TFX Power 2, be quiet!’s advanced high-efficiency compact PSU, gives you more for your mini or media PC.
£56.99 (incl. VAT)
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be quiet TFX Power 2 300W 80 Plus Gold TFX Power Supply
CA-090-BQ
TFX Power 2, be quiet!’s advanced high-efficiency compact PSU, gives you more for your mini or media PC.
£67.99 (incl. VAT)
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be quiet Pure Power 11 FM 550W 80 Gold Power Supply
CA-13K-BQ

Pure Power 11 FM 550W offers 80 PLUS® Gold efficiency, a silence-optimized 120mm be quiet! fan and user-friendly modular cables.

£79.99 (incl. VAT)
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be quiet Pure Power 11 FM 650W 80 Gold Power Supply
CA-13L-BQ
Pure Power 11 FM 650W offers 80 PLUS® Gold efficiency, a silence-optimized 120mm be quiet! fan and user-friendly modular cables.
£89.99 (incl. VAT)
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be quiet Pure Power 11 FM 750W 80 Gold Power Supply
CA-13M-BQ

Pure Power 11 FM 750W offers 80 PLUS® Gold efficiency, a silence-optimized 120mm be quiet! fan and user-friendly modular cables.

£105.95 (incl. VAT)
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Seasonic Prime TX-650 650W 80 Plus Titanium Modular Power Supply
CA-077-SS
Powerful 650 Watt power supply, 80 PLUS Titanium for maximum efficiency, Powerful single rail rated for 54 A, modular cable management with flat cables, 12 year manufacturer's warranty
£184.99 (incl. VAT)
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Seasonic Prime PX-650 650W 80 Plus Platinum Power Supply
CA-07B-SS
Powerful 650 Watt power supply, 80 PLUS Platinum for maximum efficiency, Powerful single rail rated for 52A, modular cable management with flat cables, 12 year manufacturer's warranty
£159.95 (incl. VAT)
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Seasonic Prime GX-1000 1000W 80 Plus Gold Modular Power Supply
CA-07C-SS
Powerful 1000 Watt power supply, High efficiency with 80 PLUS Gold rating, Powerful 83A single rail, Modular cable management with flat cables, 12 Year manufacturer's guarantee
£219.95 (incl. VAT)
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Seasonic Prime GX-850 850W 80 Plus Gold Modular Power Supply
CA-07D-SS
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Powerful 850 Watt power supply, High efficiency with 80 PLUS Gold, Powerful 70A single rail, Modular cable management with flat cables, 12 Year manufacturer's guarantee
£209.99 (incl. VAT)
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Seasonic Prime GX-750 750W 80 Plus Gold Modular Power Supply
CA-07E-SS
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Powerful 750 Watt power supply, High efficiency with 80 PLUS Gold rating, Powerful 62A single rail, Modular cable management with flat cables, 12 Year manufacturer's guarantee.
£159.95 (incl. VAT)
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Kolink Classic Power 400W 80 Plus Bronze Power Supply
CA-04D-KK
Modern look with flat black cables, 348W and 29A on a 12V rail, 80 PLUS bronze certificate for high efficiency, ATX form factor with a length of 160 mm
£36.95 (incl. VAT)
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Phanteks AMP 1000W 80 Plus Gold Modular Power Supply
CA-0AS-PT
1000W Modular PSU, 80 PLUS Gold certified, Near silent 120mm fan, Compatible with Revolt Pro PSUs
£149.99 (incl. VAT)
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Kolink Classic Power 500W 80 Plus Bronze Power Supply
CA-04E-KK
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Modern look with flat black cables, 444W and 37A on a 12V rail, 80 PLUS bronze certificate for high efficiency
£39.95 (incl. VAT)
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Kolink Classic Power 600W 80 Plus Bronze Power Supply
CA-04F-KK
Modern look with flat black cables, 546W and 45.5A on a 12V rail, 80 PLUS bronze certificate for high efficiency
£44.99 (incl. VAT)
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be quiet! System Power 9 600W 80 Plus Bronze Power Supply **OEM NO BOX**
CA-13V-BQ
BULK PSU DOESN'T COME IN A BOX, NO INSTRUCTIONS, OR A KETTLE PLUG
£49.99 £38.40 (incl. VAT)
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Kolink Enclave 600W 80 Plus Gold Modular Power Supply
CA-04A-KK
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Premium 80 PLUS Gold power supply rated for 600 Watts output, Fully modular cable management, Four 6+2-Pin PCIe connectors
£64.99 (incl. VAT)
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Seasonic Prime PX-750 750W 80 Plus Platinum Modular Power Supply
CA-07A-SS
Powerful 750 Watt power supply, 80 PLUS Platinum for maximum efficiency, Powerful single rail rated for 62A, modular cable management with flat cables, 12 year manufacturer's warranty
£179.99 (incl. VAT)
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be quiet! Dark Power Pro 12 1500W 80 Plus Titanium Modular Power Supply
CA-145-BQ
The be quiet! Dark Power Pro 12 1500W offers 80 PLUS® Titanium efficiency, fully digital control and frameless fan concept.
£409.99 (incl. VAT)
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Seasonic Prime GX-650 650W 80 Plus Gold Modular Power Supply
CA-07F-SS
Powerful 650 Watt power supply, 80 PLUS Gold for high efficiency, Powerful 52A single rail, Modular cable management with flat cables, 12 Year manufacturer's guarantee
£134.99 (incl. VAT)
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ASUS ROG STRIX 850W White Edition 80 Plus Gold Modular Power Supply
CA-05L-AS
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White Edition PSU, ROG Heatsinks, Dual Ball Fan Bearings, 80 Plus Gold Certification, Fully Modular, Cosmetic Customisation, 10 Year Manufacturers Warranty
£164.99 (incl. VAT)
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ASUS ROG STRIX 750W 80 Plus Gold Modular Power Supply
CA-05C-AS
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ROG Heatsinks, Dual Ball Fan Bearings, 80 Plus Gold Certification, Fully Modular, Cosmetic Customisation, 10 Year Manufacturers Warranty
£134.99 (incl. VAT)
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Seasonic Prime PX-1000 1000W 80 Plus Platinum Modular Power Supply
CA-078-SS
Powerful 1000 Watt power supply, 80 PLUS Platinum for maximum efficiency, Powerful single rail rated for 83A, modular cable management with flat cables, 12 year manufacturer's warranty
£309.95 (incl. VAT)
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ASUS ROG STRIX 1000W 80 Plus Gold Modular Power Supply
CA-05N-AS
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The ROG Strix 1000W Gold PSU brings premium cooling performance to heavyweight gaming rigs
£190.00 (incl. VAT)
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PC Power Supplies


Asus ROG Loki SFX-L 850W Platinum Power Supply - White

Power supplies play a critical role in your gaming PC and should be a high priority when piecing together your new build. Overclockers UK has a huge selection of power supplies in different wattage ratings and form factors, with some models even sporting features such as RGB! When choosing your new PSU, we’d recommend using an online tool to calculate how much wattage you’ll need during peak load. Our range includes models from industry-leading PSU manufacturers, including Corsair, Kolink, Seasonic, be quiet!, and more, meaning you’re certain to find the perfect power supply for your gaming PC.


EFFICIENCY

A power supply’s efficiency is a measure of how much energy is lost between your wall socket and the power delivered to your PC's components. You’ll often see PSU efficiency listed as an 80 PLUS rating. This certification simply means a given power supply is at least 80% efficient at 50% load.

Rated Load10%20%50%100%
80 PLUS / 82% 85% 82%
80 PLUS Bronze / 85% 88% 85%
80 PLUS Silver / 87% 90% 87%
80 PLUS Gold / 90% 92% 89%
80 PLUS Platinum / 92% 94% 90%
80 PLUS Titanium 90% 94% 96% 94%

 


Power Supply FORM FACTORS Explained

Power supply form factor is what determines a PSU's size and shape. Different form factors, such as ATX, SFX, and TFX, are tailored to fit specific case designs. Choosing the correct form factor is essential for ensuring a power supply unit fits comfortably in your PC case, allowing for efficient cable management and proper airflow. Many PC chassis will be able to accept different power supply form factors. However, the most commonly used PSU size is ATX. If you’re unsure which PSU you need for your specific PC case, you can check the specifications online or in the manual.


MODULAR, SEMI-MODULAR, AND NON-MODULAR

When it comes to choosing a PSU for your gaming PC, you have three choices. Non-modular, semi-modular, and modular. For budget gaming PCs and beginners, a non-modular power supply can be a great choice, thanks to their lower price point and pre-attached cables. Semi-modular power supplies have core cables permanently attached but also feature some detachable cables. Finally, a modular PSU features all the necessary connectors without power cables fixed in place, giving you the freedom to only use those that you need.



Want to Read More?

Your PSU is one of the most important parts of your gaming PC. In this extensive guide on the Overclockers UK Blog, we’ve covered everything you need to know about power supply efficiency.

Read More

PC Power Supplies FAQ


What wattage power supply do I need?

When choosing a PSU for your gaming PC, you’ll need to ensure it provides enough wattage for all of your components during their peak load. We suggest using an online tool to calculate how much wattage the components in your PC will need.

What do efficiency and 80 PLUS ratings mean?

Efficiency and 80 PLUS ratings indicate how effectively a PSU converts AC power from your outlet into DC power for your components. The 80 PLUS standard certifies PSUs based on their efficiency levels, with ratings like Bronze, Silver, Gold, and Platinum, representing increasingly better performance and energy savings.

What are PSU form factors?

Power supply form factors determine their size and compatibility with different case designs. Common form factors include ATX, SFX, and TFX, each tailored to fit specific cases. Choosing the right form factor ensures your PSU fits comfortably in your case, promoting efficient cable management and proper airflow.




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Innovative Products and Exclusive Brands

Overclockers UK not only offers next day delivery on thousands of products but also stocks exclusive brands from cutting-edge manufacturers including AMD, Intel, Asus, Gigabyte, Team Group and an ever-growing range of ultimate performance overclocked elite-tier hardware approved by 8 Pack.

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Industry Leading Customer Support

Whether you are after advice, product information or even aftersales support we are here for you. Overclockers UK offers unparalleled customer service which is available across multiple platforms including telephone, social media, email, webnotes, live chat, and even a dedicated section on Overclockers forum. We even offer a 3 year warranty on our own PC's.

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Overclockers UK are rated one of the top PC, hardware and peripheral retailers in the country. From premium products to a personal shopping experience. You can trust us to deliver an unbeatable 5-star service


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