ENDORFY Vero L5 Bronze 500W, 80plus Bronze Certified, Efficient and Quiet ATX Power, 1x PCI-E 8-PIN (6 plus 2), UK Plug
5.0/5£44.27
Best Power Supplies Under £300 (2026)
60 active power supplies priced at or below £300 · sorted by editor rating then price · prices update hourly
About this price band
The £300 cap is where most UK buyers in the power supplies market actually shop. We only feature products with a live, primary affiliate offer, so every entry can actually be bought today. Prices are pulled from Amazon UK and refreshed on a regular schedule, so what you see here is what you will pay on the merchant page when you click through.
Every power supply we list under £300
Gigabyte UD1000GM PG5 V2 80 Plus Gold Fully Modular 1000w PCIe 5.0 Power Supply Unit, ATX 3.1, 12VHPWR GPU Connector, Flat Cables, 10 Year Warranty
5.0/5£99.99
NZXT C850 Gold ATX 3.1 (2024) - Low Noise Fully Modular PC Gaming Power Supply - 850W - 80 Plus Gold - 12V Connector - Zero Fan Mode - 100% Japanese Capacitors - Black -
5.0/5£109.99
CORSAIR RM1000x SHIFT (2025) Fully Modular ATX Power Supply – Modular Side Interface, Native 12V-2x6 Cable, ATX 3.1 & PCIe 5.1, Fan-Speed Control, 105°C-Rated Capacitors, Cybenetics Gold – Black
5.0/5£129.98
Thermaltake Toughpower GT 850W | ATX 3.1 | PCIe 5.1 | 80+ GOLD | Modular | Snow Edition | UK Specifications
4.9/5£101.52
GIGABYTE UD850GM PG5 V2 ICE Power Supply Unit- PCIe Gen 5.1, 80 PLUS Gold, Fully Modular Design, 120mm Fan, ATX 3.1 compatible, UK Plug
4.8/5£79
Fractal Design Ion 3 Gold 1000W Black 80 PLUS Gold Certified Fully Modular ATX12V 3.1 Power Supply Unit PSU
4.8/5£109.99
Gigabyte AORUS ELITE P850W 80 Plus Platinum Fully Modular PCIe 5.1 ICE Power Supply Unit, ATX 3.1, 12V-2x6 GPU Connector, Flat Cables, 10 Year Warranty
4.8/5£130.80
ASUS ROG Strix 750 Fully Modular 80 Plus Gold 750W ATX Power Supply with 0dB Axial Tech Fan and 10 Year Warranty
4.8/5£136.46
ASUS ROG Strix 750W Gold Aura Edition (Fully Modular Power Supply, 80+ Gold Certified, ATX 3.0 Compatible, PCIe Gen 5.0 Ready, Dual Ball Bearing, Axial-tech Fan, Aura Sync, 10 Year Warranty)
4.8/5£138
NZXT C850 Gold Core - ATX 3.1 Power Supply 850W - 80 Plus Gold - Cybenetics Platinum - Fully Modular - PCIe 5.1 600W 12V-2x6 - Zero RPM Fan - Capacitors 105°C - Black
4.8/5£175.43
EVGA 220-G5-0750-X1 Super Nova 750 G5, 80 Plus Gold 750W, Fully Modular, ECO Mode with Fdb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply
4.8/5£234.09
MSI MAG A550BN Power Supply, EU Plug - 550 W, 80 Plus Bronze Certified, ATX Power Supply, 12 V Single Rail, DC/DC Voltage Converter Design, 120 mm Fan
4.7/5£44.97
CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black
4.7/5£47.99
Seasonic Core GX ATX 3 2024 650W Fully Modular 80+ Gold PCIE 5.1 Power Supply/PSU ATX3.1
4.7/5£88.94
CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – White
4.7/5£89.99
Corsair RM850x 80 PLUS Gold Fully Modular ATX 850 Watt Power Supply (135 Mm Magnetic Levitation Fan, Wide Compatibility, Reliabile Japanese Capacitors, Extremely Fast Wake-from-Sleep) UK - Black
4.7/5£92.16
TUF Gaming 850W Gold (850 Watt, ATX 3.0 Compatible, Fully Modular Power Supply, 80+ Gold, Military-grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)
4.7/5£96.50
CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
4.7/5£96.99
MSI MPG A1000G Bloc d'alimentation PCI-E5 ATX 1000 W avec Gestion des câbles entièrement modulaire 80 Plus Doré, Noir
4.7/5£135.89
CORSAIR RM850x Fully Modular Quiet ATX Power Supply - ATX 3.1 Compliance - PCIe 5.1 Support - Cybenetics Gold Efficiency - Native 12V - 2x6 Connector - Black
4.7/5£160.67
