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305 Items found
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Thermaltake Toughpower TF1 1550W 80 Plus Titanium Modular Power Supply
CA-1B2-TT
80 PLUS Titanium certified fully modular PSU with 140mm Pulse Width Modulation fan.
£400.79 £358.80 (incl. VAT)
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Silverstone SST-DA1650-G 80 PLUS Gold 1650W fully modular ATX power supply
CA-45D-SV
1650W, 80 PLUS Gold certified, Modular, ATX form factor, Integrated 135mm fan, Semi-fanless mode
£309.95 £254.94 (incl. VAT)
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ASRock Phantom Gaming 750W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-ASR-04364
The ASRock Phantom Gaming series power supply supports both current and future standards, fully compliant with ATX12V V3.1 and PCIe Gen 5.1. Ideal for both current systems and future builds, this power supplies can handle up to 220% power excursion and respond swiftly to power spikes, ensuring reliable, safe power for your components.
£134.99 £129.95 (incl. VAT)
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ASRock Phantom Gaming 1600W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-ASR-04374
The ASRock Phantom Gaming series power supply supports both current and future standards, fully compliant with ATX12V V3.1 and PCIe Gen 5.1. Ideal for both current systems and future builds, this power supplies can handle up to 220% power excursion and respond swiftly to power spikes, ensuring reliable, safe power for your components.
£289.99 £269.95 (incl. VAT)
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OcUK Value UK Mains to C5 Mains Lead (Clover Leaf)
CB-092-OK
UK to C5 mains lead, 1.8m long, Moulded PVC, Compatible with laptops, mobile projectors, and the Apple iMAC G4, UK 5A plug included
£2.99 (incl. VAT)
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Kolink Core Pro 12V-2x6 16-Pin 90 Degree Adapter - Type 1 - White
MOD-KLK-00527
Type 1 12V-6x2 adapter, 90-degree angle, 12VHPWR backwards compatible, Copper PCB, Slim profile, Copper terminals
£19.99 £5.99 (incl. VAT)
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Kolink Core Pro 12V-2x6 16-Pin 90 Degree Adapter - Type 2 - White
MOD-KLK-00528
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Type 2 12V-6x2 adapter, 90-degree angle, 12VHPWR backwards compatible, Copper PCB, Slim profile, Copper terminals
£19.99 £5.99 (incl. VAT)
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Thermal Grizzly WireView GPU, 1x 8-Pin PCIe - Normal
ACC-TGZ-03678
GPU power consumption meter, 1x 8-pin PCIe (standard), measuring power usage, recording power consumption, optimised cable management
£43.99 £24.95 (incl. VAT)
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Thermal Grizzly WireView GPU, 2x 8-Pin PCIe - Normal
ACC-TGZ-03680
Power meter for GPU power consumption, 2x 8-pin PCIe (standard), measurement of power consumption, recording of power usage, optimised cable management
£43.99 £24.95 (incl. VAT)
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Thermal Grizzly WireView GPU, 1x 8-Pin PCIe - Reverse
ACC-TGZ-03679
Power consumption meter for GPU, 1x 8-pin PCIe (reverse), measuring power consumption, recording power usage, optimised cable management
£43.99 £24.95 (incl. VAT)
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Thermal Grizzly WireView GPU, 1x 12VHPWR - Reverse
ACC-TGZ-03685
GPU power consumption meter, 1x 12VHPWR (reverse), integrated OLED display, power consumption measurement, recording of power consumption, optimised cable management
£44.99 (incl. VAT)
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Thermal Grizzly WireView GPU, 1x 12VHPWR - Normal
ACC-TGZ-03684
Power consumption meter for GPU, 1x 12VHPWR (normal), integrated OLED display, measurement of power consumption, recording of power consumption, optimised cable management
£44.99 (incl. VAT)
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Thermal Grizzly WireView Pro GPU, 1x12VHPWR - Reversed
ACC-TGZ-03689
Device for GPU power consumption, 1x 12VHPWR (reverse), integrated OLED display, measurement of power consumption, recording of power usage, temperature sensors on the 12VHPWR connector, acoustic warning signal, optimised cable management.
£59.95 (incl. VAT)
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Thermal Grizzly WireView GPU, 1x 12VHPWR to 3x 8Pin PCIe - Normal
ACC-TGZ-03686
Power consumption meter for GPU, 3x 8-pin PCIe to 1x 12VHPWR (normal), integrated OLED display, power consumption measurement, recording of power usage, optimised cable management
£49.99 (incl. VAT)
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£199.99 £184.99 (incl. VAT)
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Aerocool SMART G1 750W ATX 3.1 PCIe 5.1 80 Plus Gold Power Supply
POW-AER-05581
750W PSU, Hardwired cables, Compact ATX form factor, 80 PLUS Gold rating, Complies with ATX 3.1 and PCIe 5.1 standards, 135mm FDB fan
£91.99 £79.99 (incl. VAT)
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ASRock Challenger CL-750B 750W ATX 3.1 PCIe 5.1 80 Plus Bronze Power Supply
POW-ASR-06537
The Challenger power supply series from Asrock is crafted for value-conscious enthusiasts who want great performance from a trusted brand at a great price point
£77.99 £70.00 (incl. VAT)
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Asus TUF Gaming Gold EVO 750W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-ASU-07628
The ASUS TUF Gaming 750W Gold EVO packs military-grade strength, a flagship fan design, and PCB protection for efficient, durable power delivery. The result is a PSU that can reliably fuel your rig for years to come.
£119.99 (incl. VAT)
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FSP VITA-1000GM 1000W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-FSP-06658
The VITA range from FSP delivers stable, efficient power to your system from a compact sized unit that can be installed easily even in smaller chassis. The VITA GM range provides 80+ Gold efficiency, fully modular design and complies with ATX 3.1 and PCIe 5.1 hardware standards.
£129.95 (incl. VAT)
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FSP Hydro PTM PRO 1350W ATX 3.1 PCIe 5.1 80 Plus Platinum Modular Power Supply
POW-FSP-06660
The FSP Hydro PTM PRO ATX 3.1 series delivers cutting-edge performance with ATX 12V v3.1 compatibility, single-rail +12 V architecture and 80 PLUS Platinum certification for ultra-efficient power delivery. With fully-modular cabling, an eco-switch semi-fanless mode and full protection circuitry (OCP/OVP/OPP/SCP/OTP/UVP), it’s built for high-end PCs demanding reliable, future-proof power.
£219.95 (incl. VAT)
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OcUK Value C14 to C13 Power Extension Cable Male to Female - 1.8m
CB-16J-OK
Power extension cable, C14 male to C13 female connector, 1.8m long
£2.99 (incl. VAT)
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Seasonic VERTEX PX-750 ATX 3.1 PCIe 5.1 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)
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Asus Prime 750W ATX 3.0 PCIe 5.0 80 Plus Gold Modular Power Supply
POW-ASU-04716
ASUS Prime 750W Gold PSU brings efficient and durable power delivery to all-round PCs, and gaming rigs
£102.95 (incl. VAT)
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Seasonic Core GX-850-V2 850W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply - White
POW-SSC-05299
Seasonic CORE GX White Series – ATX 3.1 & PCIe 5.1 ready, 80 PLUS Gold certified, fully modular with braided white cables, quiet HDB fan, 7-year warranty.
£134.90 (incl. VAT)
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Seasonic Core GX-750-V2 750W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply - White
POW-SSC-05300
Seasonic CORE GX White Series – ATX 3.1 & PCIe 5.1 ready, 80 PLUS Gold certified, fully modular with braided white cables, quiet HDB fan, 7-year warranty.
£118.90 (incl. VAT)
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Seasonic Core GX-650-V2 650W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply - White
POW-SSC-05301
Seasonic CORE GX White Series – ATX 3.1 & PCIe 5.1 ready, 80 PLUS Gold certified, fully modular with braided white cables, quiet HDB fan, 7-year warranty.
£109.90 (incl. VAT)
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APNX MAX G1 1200W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-APN-05586
Compact high-end power supply, 1,200 watts output, 80 PLUS Gold & Cybenetics Platinum certified, quiet 135mm FDB fan with zero-RPM mode, ATX 3.1 & PCIe 5.1 ready, includes 12V 2x6-pin connector, Japanese capacitors for long lifespan
£218.99 £159.95 (incl. VAT)
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Antec GSK 750 V2 750w ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-ATC-06482
Introducing the GSK V2 ATX3.1 power supply, designed with the ultimate performance and stability in mind for the gaming and enthusiast market. With advanced features like ATX 3.1, PCIe 5.1, unparalleled stability, and 80 PLUS® Gold-certified efficiencies, you can expect brilliant performance from your system.
£119.99 £99.95 (incl. VAT)
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OcUK Value ATX 20-Pin to ATX 24-Pin Adapter Cable (RB-524)
CB-034-OK
This cable will allow you to connect your existing older ATX Power Supply to a motherboard that requires 24 pins, without the expensive of having to buy a whole new PSU
£4.99 (incl. VAT)
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OcUK Value 2m UK Plug to 2x C13 Kettle Lead Mains Splitter Cable
CB-16M-OK
2 x C13 kettle lead splitter cable, 2 x IEC splitter, 2.0m long, UK 13A plug included
£5.59 (incl. VAT)
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Asus ROG Loki SFX-L 1000W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
CA-05W-AS
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ASUS ROG Loki SFX-L 1000W Platinum. Total power: 1000 W, AC input voltage: 100 - 240 V, Combined power (+3.3V): 110 W. Motherboard power connector: 24-pin ATX, Cabling type: Fully-Modular. Purpose: PC, Power supply unit (PSU) form factor: SFX, 80 PLUS certification: 80 PLUS Platinum. Product colour: Black, Silver, Fan diameter: 12 cm, Number of fans: 1 fan(s). Compliance certificates: RoHS, Certification: OPP/OVP/UVP/SCP/OCP/OTP
£209.99 (incl. VAT)
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Asus ROG Loki SFX-L 750W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
CA-05Y-AS
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ASUS ROG Loki SFX-L 750W Platinum. Total power: 750 W, AC input voltage: 100 - 240 V, Combined power (+3.3V): 110 W. Motherboard power connector: 20+4 pin ATX, Cabling type: Fully-Modular. Purpose: PC, Power supply unit (PSU) form factor: SFX, 80 PLUS certification: 80 PLUS Platinum. Product colour: Black, Silver, Fan diameter: 12 cm, Number of fans: 1 fan(s). Compliance certificates: RoHS, Certification: OPP/OVP/UVP/SCP/OCP/OTP
£174.95 (incl. VAT)
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FSP VITA-850GD 850W ATX 3.1 PCIe 5.1 80 Plus Gold Power Supply
POW-FSP-07043
The FSP VITA GD 850W delivers a solid 850 W of continuous power with an 80 PLUS Gold certification for efficiency of ≥90 % at typical load, helping reduce wasted energy and heat. It’s built to the latest ATX 3.1 standard and PCIe Gen 5.1-ready, so it’s compatible with current and next-gen components.
£109.99 (incl. VAT)
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Antec Signature 2200W Platinum ATX 3.1 PCIe 5.1 80 Plus Platinum Modular Power Supply
POW-ATC-06485
The Signature 2200 Platinum ATX3.1 is Antec’s high-performance ATX 3.1 power supply, designed to support modern, power-demanding systems. It features key industry standards including ATX 3.1 and PCIe 5.1 compliance, 100% high-quality Japanese capacitors, fully modular cabling, and up to 94% efficiency certified by 80 PLUS Platinum.
£449.95 (incl. VAT)
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Asrock PRO-750B 80 Plus Bronze ATX 3.1 PCIE 5.1 Power Supply
POW-ASR-07514
The Asrock PRO series is created for value-focused system builders, offering 80 PLUS Bronze rating, high quality cabling and solid internal components.
£59.99 (incl. VAT)
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Seasonic Focus GX-750 750W ATX 3.1 80 Plus Gold Modular Power Supply - White
POW-SSC-03193
The Seasonic FOCUS GX White ATX 3.1 is a fully modular, 80 PLUS Gold certified power supply, delivering high energy efficiency, quiet operation, and advanced protection features.
£129.95 (incl. VAT)
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Seasonic Core GX-650-V2 650W ATX 3.1 PCIe 5.1 80 Plus Gold Modular Power Supply
POW-SSC-03649
The Seasonic Core GX ATX 3.1 power supply offers high efficiency, enhanced stability, and quiet operation, ideal for modern gaming rigs and powerful workstations.
£99.95 (incl. VAT)
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Thermal Grizzly WireView GPU, 2x 8-Pin PCIe - Reverse
ACC-TGZ-03681
GPU power consumption meter, 2x 8-pin PCIe (reverse), measurement of power consumption, recording of power usage, optimised cable management
£43.99 £24.95 (incl. VAT)
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Asus ROG Loki SFX-L 850W ATX 3.1 PCIe 5.0 80 Plus Platinum Modular Power Supply
CA-05X-AS
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ASUS ROG Loki SFX-L 850W Platinum. Total power: 850 W, AC input voltage: 100 - 240 V, Combined power (+3.3V): 110 W. Motherboard power connector: 24-pin ATX, Cabling type: Fully-Modular. Purpose: PC, Power supply unit (PSU) form factor: SFX, 80 PLUS certification: 80 PLUS Platinum. Product colour: Black, Silver, Fan diameter: 12 cm, Number of fans: 1 fan(s). Compliance certificates: RoHS, Certification: OPP/OVP/UVP/SCP/OCP/OTP
£199.99 (incl. VAT)
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Asus TUF Gaming EVO 650W ATX 3.1 PCIe 5.1 80 Plus Bronze Modular Power Supply
POW-ASU-07630
The ASUS TUF Gaming 650W Bronze EVO packs military-grade strength, a flagship fan design, and PCB protection for efficient, durable power delivery. The result is a PSU that can reliably fuel your rig for years to come.
£69.95 (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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