Help & Support Blog Forum
chevron_left
chevron_right

PC Power Supplies

chevron_left
chevron_right
Filter
View:
view_comfy square view_list
194 Items found
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)
fiber_manual_record In stock
Seasonic Focus GX-1000 ATX 3.1 1000W 80 Gold Modular Power Supply
POW-SSC-03149
The Seasonic FOCUS GX ATX 3.1 is a fully modular, 80 PLUS Gold power supply offering advanced energy efficiency, quiet operation, and comprehensive protection features for high-performance builds.
£169.99 (incl. VAT)
fiber_manual_record In stock
ASUS ROG THOR 1000W Platinum II Modular Power Supply
CA-05U-AS
star star star star star
(6)
ROG Thor 1000W Platinum II is the quietest PSU in its class.
£304.99 (incl. VAT)
fiber_manual_record In stock
Corsair RM1200x Shift ATX 3.0 80 Plus Gold Power Supply (CP-9020254-UK)
CA-27B-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
£214.99 (incl. VAT)
fiber_manual_record In stock
Lian-Li SP750W SFX Modular 80 Plus Gold Power Supply - White
CA-7AP-LL
Arm small builds with the Lian Li SP750 SFX Power Supply and feed your high-end gaming hardware with an 80 PLUS Gold efficiency rating, all from an SFF PSU.
£124.99 (incl. VAT)
fiber_manual_record In stock
Save 10%
CORSAIR CX Series CX650 80 PLUS Bronze ATX Power Supply
POW-CRS-01135
80 PLUS Bronze certified CORSAIR CX Series Power Supplies feature low-noise cooling and a compact design for an easy fit in nearly any modern case.
£51.95 £46.99 (incl. VAT)
fiber_manual_record In stock
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)
fiber_manual_record In stock
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)
fiber_manual_record In stock
Seasonic Focus GX-750 ATX 3.1 750W 80 Gold Modular Power Supply
POW-SSC-03150
The Seasonic FOCUS GX ATX 3.1 is a fully modular, 80 PLUS Gold power supply offering advanced energy efficiency, quiet operation, and comprehensive protection features for high-performance builds.
£119.99 (incl. VAT)
fiber_manual_record In stock
Kolink AT/ATX "Kettle Plug" 1.2 5A Fuse Meter Mains Cable
CB-002-KK
Standard 'kettlle plug' cable for ATX power supplies and monitors - fitted with a moulded and fused plug and with 1.2 meters of cord.
£2.99 (incl. VAT)
fiber_manual_record In stock
Save 11%
CORSAIR CX Series CX550 80 PLUS Bronze ATX Power Supply
POW-CRS-01134
80 PLUS Bronze certified CORSAIR CX Series Power Supplies feature low-noise cooling and a compact design for an easy fit in nearly any modern case.
£46.99 £41.99 (incl. VAT)
fiber_manual_record In stock
Save 9%
Corsair CV Series CV550 550W 80 Plus Bronze Power Supply (CP-9020210-UK)
CA-25C-CS
80 PLUS Bronze Certified, Full Continuous Power, Low-Noise Cooling, Compact Casing, Black Sleeving and Casing, Three-Year Manufacturer Warranty
£53.99 £48.95 (incl. VAT)
fiber_manual_record In stock
Save 22%
Aerocool Integrator Gold 850W 80 Plus Gold Modular Power Supply
CA-23T-AE
The most affordable 80Plus Gold power supply unit that delivers high efficiency and stable power output with minimum noise.
£89.99 £69.95 (incl. VAT)
fiber_manual_record In stock
Free Delivery
Save 31%
Asus TUF Gaming 850W 80 Plus Gold Power Supply
CA-060-AS
star star star star star
(9)
The TUF Gaming 850W Gold is an efficient, resilient and dependable PSU that’s engineered for the long haul.
£129.95 £89.99 (incl. VAT)
fiber_manual_record In stock
Corsair RMe Series RM750e Fully Modular Low-Noise ATX Power Supply v2 (CP-9020262-UK)
CA-27S-CS
CORSAIR RMe Series Fully Modular Low-Noise Power Supplies with ATX 3.0 and PCIe 5.0 compliance provide quiet, reliable power with 80 PLUS Gold efficiency to a wide variety of PC builds.
£109.99 (incl. VAT)
fiber_manual_record In stock
Save 32%
Aerocool Integrator Gold 1000W 80 Plus Gold Modular Power Supply
CA-23U-AE
1000W AeroCool Integrator Gold, 80PLUS Gold, Fully Modular, Single Rail, 83A, 120mm Fan with Zero RPM mode, ATX PSU
£124.99 £84.95 (incl. VAT)
fiber_manual_record In stock
Free Delivery
Aerocool Integrator 500W 80 Plus Bronze Power Supply
CA-23M-AE
star star star star star
(1)
Aerocool Integrator 500W 80 Plus Bronze Power Supply
£37.99 (incl. VAT)
fiber_manual_record In stock
Aerocool Integrator 600W 80 Plus Bronze Power Supply
CA-23P-AE
Aerocool Integrator 600W 80 Plus Bronze Power Supply
£41.99 (incl. VAT)
fiber_manual_record In stock
Save 36%
Aerocool Integrator 850W 80 Plus Bronze Power Supply
POW-AER-01512
Aerocool Integrator 850W 80 Plus Bronze Power Supply
£69.95 £44.99 (incl. VAT)
fiber_manual_record In stock
Lian Li SP850W SFX Modular 80 Plus Gold Power Supply - White
CA-7B5-LL
star_border star star star star
(1)
Maximum output of 850W, SFX form factor, 80 Plus Gold rating, Fully modular design, Zero RPM mode at 40% load, 5-year warranty
£144.95 (incl. VAT)
fiber_manual_record In stock
Corsair HXi Series HX1000i Fully Modular Ultra-Low Noise ATX Digital Power Supply (CP-9020259-UK)
CA-27Q-CS
CORSAIR HXi Series Fully Modular Ultra-Low Noise Power Supplies with ATX 3.0 and PCIe 5.0 use the highest quality components to deliver 80 PLUS Platinum efficient power.
£219.95 (incl. VAT)
fiber_manual_record In stock
CORSAIR SF Series SF750 Fully Modular 80 PLUS Platinum SFX Power Supply
POW-CRS-02468
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.
£154.99 (incl. VAT)
fiber_manual_record In stock
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)
fiber_manual_record In stock
CORSAIR SF Series SF850 Fully Modular 80 PLUS Platinum SFX Power Supply
POW-CRS-02469
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.
£174.95 (incl. VAT)
fiber_manual_record In stock
Lian Li EDGE 1300w 80 Plus Platinum Power Supply - Black
POW-LIA-02362
star star star star star
(1)
1300W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£199.99 (incl. VAT)
fiber_manual_record Pre order
Lian Li EDGE 1300w 80 Plus Platinum Power Supply - White
POW-LIA-02363
1300W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£204.95 (incl. VAT)
fiber_manual_record Pre order
£119.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic Prime TX-750 750W 80 Plus Titanium Modular Power Supply
CA-076-SS
Powerful 750 Watt power supply, 80 PLUS Titanium for maximum efficiency, Powerful single rail rated for 62 A, modular cable management with flat cables, 12 year manufacturer's warranty
£224.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic Prime TX-1600 1600W 80 Plus Titanium Modular Power Supply
CA-081-SS
Pressing on with its One Seasonic Initiative, the PRIME TX, PRIME PX and PRIME GX series became the successors to the Seasonic PRIME and PRIME Ultra series.
£469.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic VERTEX PX-850 ATX3.0 850W 80 Plus Platinum Modular Power Supply
CA-08R-SS
Seasonic VERTEX PX Series, redefines power supply excellence, ensuring peak performance, reliability, and advanced features for an elevated PC power solution.
£199.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic VERTEX PX-750 ATX3.0 750W 80 Plus Platinum Modular Power Supply
CA-08V-SS
Seasonic VERTEX PX Series, redefines power supply excellence, ensuring peak performance, reliability, and advanced features for an elevated PC power solution.
£169.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic Prime PX 3.0 1600W ATX 3.0 80 Plus Platinum Power Supply
CA-08W-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.
£379.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic G12-GC-650 650W 80 Gold Power Supply
POW-SSC-03155
Seasonic's G12 GC power supplies offer reliable 80 PLUS Gold efficiency, non-modular design, and high performance, ideal for budget-conscious builds without compromising quality.
£65.99 (incl. VAT)
fiber_manual_record Pre order
Seasonic VERTEX GX-850 850W 80+ Gold Modular Power Supply
CA-089-SS
VERTEX Series units will provide true power in both Platinum and Gold levels of efficiency
£169.99 (incl. VAT)
fiber_manual_record Pre order
Gigabyte UD1000GM PG5 1000W 80 PLUS Gold Modular ATX Power Supply
CA-03H-GI
The UD1000GM PCIE 5.0 has a 16-pin connector and comes with a high-quality native 16-pin cable that allows you to use the PSU with a PCIe Gen 5.0 graphics card. This cable can support up to 600 watts.
£129.95 (incl. VAT)
fiber_manual_record Pre order
Seasonic VERTEX PX-1000 ATX3.0 1000W 80 Plus Platinum Modular Power Supply
CA-08Q-SS
Seasonic VERTEX PX Series, redefines power supply excellence, ensuring peak performance, reliability, and advanced features for an elevated PC power solution.
£229.99 (incl. VAT)
fiber_manual_record Pre order
Lian Li EDGE 1000w 80 Plus Platinum Power Supply - Black
POW-LIA-02360
1000W PSU, 80 PLUS Platinum Rating, Fully Modular, L-Shaped Form Factor, ATX12V Version 3.1, USB 2.0 Hub
£164.99 (incl. VAT)
fiber_manual_record Pre order
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)
fiber_manual_record Pre order
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)
fiber_manual_record Pre order
Corsair RM850x Shift ATX 3.0 80 Plus Gold Power Supply (CP-9020252-UK)
CA-279-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
£144.95 (incl. VAT)
fiber_manual_record Pre order

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.




The Overclockers Difference


innovative products, services and customer service

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.

customer service

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.

5 star Trustpilot

5 Star Service

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


Subscribe and Save


subscribe

Subscribe to the Newsletter

Sign up to our weekly newsletter and get the latest news, offers, and deals directly to your inbox. Don't worry you can unsubscribe at anytime.

Sign Up Now


4.8

star star star star star_half

Google customer reviews

Our customers know our services and this is reflected in the rating they give us. Leave us your opinion and help us to improve it.

What our customers say about us

25 years trust badge