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194 Items found
Cooler Master V SFX Platinum 1100W Power Supply
POW-CLM-00897
AN SFX REVOLUTION
£249.95 (incl. VAT)
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MSI MAG A850GL PCIe 5.0 ATX 3.0 80 Plus Gold Power Supply - White
POW-MSI-01938
The MSI MAG A850GL PCIE5 WHITE is a fully-modular ATX power supply delivering 850W of reliable power with 80 PLUS Gold efficiency and active PFC.
£129.95 (incl. VAT)
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CoolerMaster MWE V2 1050w ATX3.0 PCI-e 5.0 80 Plus Gold Power Supply - Black
CA-38H-CM
The new MWE Gold V2 series is the next step in the evolution of Cooler Master's entry level 80 Plus Gold Power Supply line
£149.99 (incl. VAT)
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Seasonic PRIME PX 3.0 2200W ATX 3.0 80 Plus Platinum Power Supply
POW-SSC-03346
The Seasonic PRIME PX-2200. Designed for demanding applications such as artificial intelligence and other high-power workloads, this flagship unit from the PRIME series delivers top-tier performance built on high-quality components.
£499.99 (incl. VAT)
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OcUK Value Right Angle C13 UK Kettle Lead 1.8m 5A fuse
CB-17L-OK
C13 UK Kettle Lead, 1.8m, 5A fuse, Right Angle
£2.54 (incl. VAT)
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Seasonic Prime TX-1000 1000W 80 Plus Titanium Modular Power Supply
CA-074-SS
Powerful 1,000 Watt power supply, 80 PLUS Titanium for maximum efficiency, Powerful single rail rated for 83 A, modular cable management with flat cables, 12 year manufacturer's warranty
£339.95 (incl. VAT)
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Seasonic Prime TX-850 850W 80 Plus Titanium Modular Power Supply
CA-075-SS
Powerful 850 Watt power supply, 80 PLUS Titanium for maximum efficiency, Powerful single rail rated for 70 A, modular cable management with flat cables, 12 year manufacturer's warranty
£264.95 (incl. VAT)
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Kolink C19 1.8 Meter Mains Cable
CB-001-KK
UK to C19 International IEC, 1.8 Mtrs Moulded, 13A Fuse on UK plug, 16A C19 Connector
£3.95 (incl. VAT)
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Seasonic VERTEX GX-750 750W 80 Gold Modular Power Supply
POW-SSC-01270
Seasonic’s latest Vertex Series is designed and built to power new PC components requiring the new ATX 3.0 and PCIe 5.0 standards.
£129.95 (incl. VAT)
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Be quiet! Straight Power 12 1200W 80 Plus Platinum ATX 3.0 Power Supply
CA-153-BQ
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
£199.99 (incl. VAT)
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Be quiet! Straight Power 12 1000W 80 Plus Platinum ATX 3.0 Power Supply
CA-154-BQ
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
£169.99 (incl. VAT)
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Seasonic PRIME TX 3.0 1600W ATX 3.0 80 Plus Titanium Power Supply
CA-08Y-SS
Seasonic’s latest PRIME ATX 3.0 Series is designed and built to power new PC components requiring the new ATX 3.0 and PCIe 5.0 standards.
£479.99 (incl. VAT)
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Free Gift
Kolink Regulator 750W 80 Plus Gold Gen5 Modular Power Supply
CA-07U-KK
ATX 3.0 PSU, 12VHPWR 600W cable, Fully Modular, Switchable semi-fanless mode, Japanese capacitors, 120mm FDB fan, Extensive safety functions (OVP, UVP, OPP, SCP, OCP, OTP, SIP)
£89.99 (incl. VAT)
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Free Delivery
Seasonic G12 GM-650 650W 80 Plus Gold Semi-Modular Power Supply
POW-SSC-03185
The G12 GM range features 80 PLUS Gold efficiency and semi-modular design, providing flexibility for cleaner cable management while delivering efficient and reliable power output.
£69.95 (incl. VAT)
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Seasonic PRIME TX 3.0 1300W ATX 3.0 80 Plus Titanium Power Supply
CA-08X-SS
Seasonic’s latest PRIME ATX 3.0 Series is designed and built to power new PC components requiring the new ATX 3.0 and PCIe 5.0 standards.
£409.99 (incl. VAT)
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be quiet! TFX 3 300W Bronze Power Supply
CA-14E-BQ

TFX Power 3 300W Bronze: the upgraded be quiet! PSU for mini and media PCs at a reasonable price.

£49.99 (incl. VAT)
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be quiet! Pure Power 12 M 1000W ATX 3.0 80 Plus Gold Power Supply
CA-14Q-BQ
star_border star star star star
(1)
Pure Power 12 M 1000W is ATX 3.0 compliant and PCIe 5.0 compatible, offers 80 PLUS® Gold efficiency and a silence-optimized 120mm be quiet! fan.
£129.95 (incl. VAT)
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be quiet! Dark Power Pro 13 1600W 80 Plus Titanium Power Supply
CA-14Z-BQ
The be quiet! Dark Power Pro 13 1600W offers 80 PLUS® Titanium efficiency, world-class performance and ATX 3.0 compliance for next-gen GPU compatibility.
£349.99 (incl. VAT)
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be quiet! Pure Power 12 M 1200W ATX 3.0 80 Plus Gold Power Supply
CA-150-BQ
Pure Power 12 M 1200W is ATX 3.0 compliant and PCIe 5.0 compatible, offers 80 PLUS® Gold efficiency and a silence-optimized 120mm be quiet! fan.
£149.99 (incl. VAT)
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Be quiet! Straight Power 12 1500W 80 Plus Platinum ATX 3.0 Power Supply
CA-152-BQ
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
£229.99 (incl. VAT)
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Free Gift
Kolink Regulator 1000W 80 Plus Gold Gen5 Modular Power Supply
CA-07W-KK
ATX 3.0 PSU, 12VHPWR 600W cable, Fully Modular, Switchable semi-fanless mode, Japanese capacitors, 120mm FDB fan, Extensive safety functions (OVP, UVP, OPP, SCP, OCP, OTP, SIP)
£124.99 (incl. VAT)
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Free Delivery
be quiet! SFX 3 300W Bronze Power Supply
CA-13N-BQ

SFX Power 3 300W, the first choice compact PSU for mini and media PCs with PCIe graphics card support.

£49.99 (incl. VAT)
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Seasonic G12 GM-750 750W 80 Plus Gold Semi-Modular Power Supply
POW-SSC-03184
The G12 GM range features 80 PLUS Gold efficiency and semi-modular design, providing flexibility for cleaner cable management while delivering efficient and reliable power output.
£79.99 (incl. VAT)
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Seasonic Core GX-850-V2 ATX3.1 80 Plus Gold Power Supply
POW-SSC-03647
The Seasonic Core GX ATX 3.0 2024 power supply offers high efficiency, enhanced stability, and quiet operation, ideal for modern gaming rigs and powerful workstations.
£124.99 (incl. VAT)
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Seasonic Core GX-750-V2 ATX3.1 80 Plus Gold Power Supply
POW-SSC-03648
The Seasonic Core GX ATX 3.0 2024 power supply offers high efficiency, enhanced stability, and quiet operation, ideal for modern gaming rigs and powerful workstations.
£114.95 (incl. VAT)
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Seasonic Core GX-650-V2 ATX3.1 80 Plus Gold Power Supply
POW-SSC-03649
The Seasonic Core GX ATX 3.0 2024 power supply offers high efficiency, enhanced stability, and quiet operation, ideal for modern gaming rigs and powerful workstations.
£104.99 (incl. VAT)
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Kolink Regulator 4+4 12V ATX / EPS / CPU Modular Cable
POW-KLK-01114
4+4 12V ATX Cable, Designed for Kolink REGULATOR Series PSU, Replacement cable
£4.99 (incl. VAT)
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be quiet! Pure Power 12 M 850W ATX 3.0 80 Plus Gold Power Supply
CA-14R-BQ
Pure Power 12 M 850W is ATX 3.0 compliant and PCIe 5.0 compatible, offers 80 PLUS® Gold efficiency and a silence-optimized 120mm be quiet! fan.
£109.99 (incl. VAT)
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be quiet! SYSTEM POWER 10 750W 80 Plus Bronze Power Supply
CA-14W-BQ
PROVEN RELIABILITY, QUIET OPERATION
£64.99 (incl. VAT)
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be quiet! SYSTEM POWER 10 850W 80 Plus Gold Power Supply
CA-14X-BQ
PROVEN RELIABILITY, QUIET OPERATION
£89.99 (incl. VAT)
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be quiet! Dark Power Pro 13 1300W 80 Plus Titanium Power Supply
CA-14Y-BQ
The be quiet! Dark Power Pro 13 1300W offers 80 PLUS® Titanium efficiency, world-class performance and ATX 3.0 compliance for next-gen GPU compatibility.
£329.99 (incl. VAT)
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be quiet! SFX-L Power 600W 80 Plus Gold Modular Power Supply
CA-13A-BQ
Compact SFX-L PSU from from be quiet! 600 Watt total output & 50 A single rail, 80 Plus Gold certification, Fully modular cable management, 120mm fan, 4x 6+2-Pin PCIe / 6x SATA / 3x 4-Pin Molex
£99.95 (incl. VAT)
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Free Gift
Super Flower Leadex Platinum '8Pack Edition' 2000W Fully Modular "80 Plus Platinum" Power Supply -
CA-031-SF
star star star star star
(2)
The collaboration of Super Flower with the world's number 1 overclocker, the multiple world record holder 'Ian "8Pack" Parry' has led to the worlds first 2000W consumer power supply on the market.
£399.95 (incl. VAT)
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be quiet! SFX 3 450W Bronze Power Supply
CA-14D-BQ

SFX Power 3 450W, the first choice compact PSU for mini and media PCs with PCIe graphics card support.

£59.99 (incl. VAT)
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be quiet! Dark Power 13 1000W 80 PLUS Titanium Power Supply
CA-14M-BQ
The be quiet! Dark Power 13 1000W offers 80 PLUS® Titanium efficiency, virtually inaudible operation, and ATX 3.0 compliance for next-gen GPU compatibility.
£219.95 (incl. VAT)
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Be quiet! Straight Power 12 850W 80 Plus Platinum ATX 3.0 Power Supply
CA-155-BQ
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
£149.99 (incl. VAT)
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Be quiet! Straight Power 12 750W 80 Plus Platinum ATX 3.0 Power Supply
CA-156-BQ
Straight Power 12 is a future-proof ATX 3.0 power supply with 80 PLUS® Platinum certification and virtually inaudible operation.
£129.95 (incl. VAT)
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Save 21%
£239.99 £189.95 (incl. VAT)
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£199.99 (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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