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195 Items found
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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Aerocool Integrator 850W 80 Plus Bronze Power Supply
POW-AER-01512
Aerocool Integrator 850W 80 Plus Bronze Power Supply
£69.95 (incl. VAT)
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Free Gift
Lian Li EDGE 1300w 80 Plus Platinum Power Supply - Black
POW-LIA-02362
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1300W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£199.99 (incl. VAT)
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Lian Li EDGE 850w 80 Plus Platinum Power Supply - Black
POW-LIA-02359
850W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£129.95 (incl. VAT)
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be quiet! SYSTEM POWER 10 650W 80 Plus Bronze Power Supply
CA-14V-BQ
PROVEN RELIABILITY, QUIET OPERATION
£54.95 (incl. VAT)
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Antec HCG 850 Pro Platinum 850W ATX3.1 Full modular Power Supply
POW-ATC-02745
HCG850 PRO Platinum ATX 3.1 FOR THE ULTIMATE GAMER
£159.95 (incl. VAT)
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be quiet! Dark Power 13 750W 80 PLUS Titanium Power Supply
CA-14P-BQ
The be quiet! Dark Power 13 750W offers 80 PLUS® Titanium efficiency, virtually inaudible operation, and ATX 3.0 compliance for next-gen GPU compatibility.
£179.99 (incl. VAT)
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CORSAIR SF Series SF1000 Fully Modular 80 PLUS Platinum SFX Power Supply
POW-CRS-02470
Outfit your next SFF PC with the CORSAIR SF Series 80 PLUS Platinum SFX Power Supply for compact, ATX 3.1 compliant, fully modular Platinum power.
£199.99 (incl. VAT)
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be quiet! SFX-L Power 500W 80 Plus Gold Modular Power Supply
CA-139-BQ
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Compact SFX-L PSU from be quiet! 500 Watt total output & 41.7 A single rail, 80 Plus Gold certified, Fully modular cable management, 120 Millimetre fan, 4x 6+2-Pin PCIe / 6x SATA / 3x 4-Pin Molex
£89.99 (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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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! 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 550W 80 Plus Bronze Power Supply
CA-14U-BQ
PROVEN RELIABILITY, QUIET OPERATION
£49.99 (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! 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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£239.99 (incl. VAT)
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Asus TUF Gaming 850W 80 Plus Gold Power Supply
CA-060-AS
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The TUF Gaming 850W Gold is an efficient, resilient and dependable PSU that’s engineered for the long haul.
£129.95 (incl. VAT)
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be quiet! Pure Power 12 M 750W ATX 3.0 80 Plus Gold Power Supply
CA-14S-BQ
Pure Power 12 M 750W is ATX 3.0 compliant and PCIe 5.0 compatible, offers 80 PLUS® Gold efficiency and a silence-optimized 120mm be quiet! fan.
£99.95 (incl. VAT)
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Free Gift
Lian Li EDGE 1000w 80 Plus Platinum Power Supply - White
POW-LIA-02361
1000W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£169.99 (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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Antec HCG 1200 Pro Platinum 1200W ATX3.1 Full modular Power Supply
POW-ATC-02747
HCG1200 PRO Platinum ATX 3.1 FOR THE ULTIMATE GAMER
£209.99 (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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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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Free Gift
Super Flower Leadex Platinum '8Pack Edition' 2000W Fully Modular "80 Plus Platinum" Power Supply -
CA-031-SF
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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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OcUK Value 2Mtr UK Plug to C19 International IEC
CB-104-OK
The C19 International IEC to UK mains cable is commonly used for powering high current IT appliances such as PSUs, PDUs and some high powered servers and workstations.
£4.98 (incl. VAT)
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Seasonic Focus SGX 650W 80 Plus Gold Modular SFX Power Supply
CA-06N-SS
The long-awaited new line of Seasonic's FOCUS SGX is versatile in its application and powerful with a small footprint.
£124.99 (incl. VAT)
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Corsair AXi Series AX1600i 1600W 80 Plus Titanium Digital Modular Power Supply (CP-9020087-UK)
CA-23U-CS
AXi Series, The CORSAIR AX1600i is the ultimate digital ATX power supply, built using only the best components and state-of-the-art gallium nitride transistors to deliver more than 94% efficiency.
£439.99 (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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Corsair RM1000x Shift ATX 3.0 80 Plus Gold Power Supply (CP-9020253-UK)
CA-27A-CS
CORSAIR RMx SHIFT Series fully modular power supplies boast a revolutionary side cable interface to keep all your connections within easy reach, for exceptionally convenient 80 PLUS Gold efficient pow
£174.95 (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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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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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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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
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
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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Kolink Regulator Modular SATA Cable
POW-KLK-01115
SATA Cable, Designed for Kolink REGULATOR Series PSU, Replacement cable
£3.95 (incl. VAT)
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Kolink Regulator Modular PCIe 6+2 Cable
POW-KLK-01117
PCIe 6+2 Cable, Designed for Kolink REGULATOR Series PSU, Replacement cable
£4.99 (incl. VAT)
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Cooler Master V SFX Platinum 1300W Power Supply
POW-CLM-00896
AN SFX REVOLUTION
£264.95 (incl. VAT)
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Cooler Master V SFX Platinum 1100W Power Supply
POW-CLM-00897
AN SFX REVOLUTION
£249.95 (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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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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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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