800w - 850w PSUs

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30 Items found

Phanteks AMP GH 850W 80PLUS Gold ATX Power Supply Modular - White

POW-PHK-02520

(1)

Modular power supply, 850W, 80 PLUS Gold, ATX 3.0, PCIe Gen 5.1 support, Textured cables included

£114.95 (incl. VAT)

In stock

Antec SF850X 80Plus Gold ATX 3.1 850W Full Modular SFX Power Supply

POW-ATC-02744

SF850X COMPACT YET POWERFUL

£144.95 (incl. VAT)

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)

In stock

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)

In stock

be quiet! SYSTEM POWER 10 850W 80 Plus Gold Power Supply

CA-14X-BQ

PROVEN RELIABILITY, QUIET OPERATION

£89.99 (incl. VAT)

In stock

Gigabyte UD850GM PG5 850W 80 PLUS Gold Modular ATX Power Supply

CA-03K-GI

£119.99 (incl. VAT)

In stock

Phanteks AMP GH 850W 80PLUS Gold ATX Power Supply Modular - Black

POW-PHK-02519

Modular power supply, 850W, 80 PLUS Gold, ATX 3.0, PCIe Gen 5.1 support, Textured cables included

£104.99 (incl. VAT)

In stock

Asus ROG Loki SFX-L 850W Platinum Power Supply

CA-05X-AS

(3)

£199.99 (incl. VAT)

In stock

Kolink Regulator 850W 80 Plus Gold Gen5 Modular Power Supply

CA-07V-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)

£109.99 (incl. VAT)

In stock

Free Delivery

Lian Li SP850W SFX Modular 80 Plus Gold Power Supply - White

CA-7B5-LL

(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)

In stock

be quiet! Dark Power 13 850W 80 PLUS Titanium Power Supply

CA-14N-BQ

(3)

£199.99 (incl. VAT)

In stock

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)

In stock

Aerocool Integrator 850W 80 Plus Bronze Semi-Modular Power Supply

CA-23R-AE

Aerocool Integrator 850W 80 Plus Bronze Semi-Modular Power Supply

£74.99 (incl. VAT)

In stock

Free Delivery

Asus ROG Strix 850w Platinum 80 Plus Platinum Power Supply

POW-ASU-03790

ROG Strix 850W Platinum is a cool and quiet PSU with stable power delivery, engineered for efficiency with GaN MOSFET and intelligent stabilizer in striking style.

£179.99 (incl. VAT)

In stock

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)

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)

In stock

Aerocool Integrator 850W 80 Plus Bronze Power Supply

POW-AER-01512

Aerocool Integrator 850W 80 Plus Bronze Power Supply

£69.95 (incl. VAT)

In stock

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)

In stock

Save 29%

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

CA-06F-AS

(2)

ROG Loki 850W Platinum White Edition, The Quietest SFX-L PSU.

£209.99 £149.99 (incl. VAT)

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)

Pre order

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)

Pre order

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)

Pre order

Save 26%

CORSAIR RM850x Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply

POW-CRS-02466

CORSAIR RMx Series Fully Modular Low-Noise Power Supplies are ATX 3.1 compliant, providing low-noise dependable power with 80 PLUS Gold efficiency to today’s top-performing PCs.

£147.95 £109.99 (incl. VAT)

Pre order

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.

£114.95 (incl. VAT)

Pre order

Save 17%

MSI MAG A850GL 850W 80 Plus Gold ATX 3.0 PCIE5Modular Power Supply

CA-012-MS

(1)

£119.99 £99.95 (incl. VAT)

Pre order

Save 7%

MSI MPG A850G PCIE5 UK PSU 850W 80 Plus Gold Modular Power Supply

CA-00Y-MS

(4)

£139.99 £129.95 (incl. VAT)

Pre order

Save 31%

Asus TUF Gaming 850W 80 Plus Gold Power Supply

CA-060-AS

(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)

Pre order

Save 20% Free Gift

Thermaltake Toughpower PF3 850W ATX3.0 Native PCIE 5 Fully Modular 80 Plus Platinum Power Supply

CA-1BQ-TT

Toughpower PF3 series is 80 PLUS Platinum certified and fully compatible with Intel’s ATX 3.0 specifications

£199.99 £160.00 (incl. VAT)

Out of stock

See Details

ASUS ROG STRIX 850W White Edition 80 Plus Gold Modular Power Supply

CA-05L-AS

(4)

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)

Out of stock

See Details

Seasonic B12 BC-850 850W 80+ Bronze Power supply

CA-07P-SS

80 PLUS® Bronze certified, Fixed cables, Tight Voltage Regulation, S2FC - Smart and Silent Fan Control, 5 years warranty

£85.00 (incl. VAT)

Out of stock

See Details

PC Power Supplies 800W - 850W PSUs

Game like never before with an 850W PC power supply from Overclockers UK, expertly designed to offer the best possible power delivery for the latest gaming hardware. Whether you're assembling a new gaming PC or upgrading your current computer, our selection of 850W PSUs will ensure your gaming experience remains unrivalled. What’s more, you can take your pick from a huge range of industry-leading brands, including Corsair, EVGA, Seasonic, and more!

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Where do all these cables go? PSUs have a lot of cables, and knowing which one goes where is super important! In this guide on the Overclockers UK Blog, we’ve covered everything you need to know about PC power supply cables and connectors.

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.

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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800w - 850w PSUs

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