Best Power Supplies Under £1000 (2026)
60 active power supplies priced at or below £1000 · sorted by editor rating then price · prices update hourly
About this price band
The £1000 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 £1000
be quiet! Pure Power 13 M 1000W Power Supply, 80 PLUS® Gold Certification, ATX 3.1 PSU, Support For PCIe 5.1 GPUs, Semi-Passive 120mm be quiet! Fan, LLC Technology, Single Rail, For Overclocked GPUs
5.0/5£109.83
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£117.59
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
5.0/5£117.99
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£118.99
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£164.99
ASROCK TC-1300T, PSU, 1300W, 80 Plus Titanium, 135 mm, Modular, PCI-E 5.1 (12+4pin) x2, PCI-E (6+2 Pin) x8, SATA (5 Pin) x9
5.0/5£327.37
Thermaltake Toughpower GT 850W | ATX 3.1 | PCIe 5.1 | 80+ GOLD | Modular | Snow Edition | UK Specifications
4.9/5£101.52
Fractal Design Ion 3 Gold 1000W Black 80 PLUS Gold Certified Fully Modular ATX12V 3.1 Power Supply Unit PSU
4.9/5£129.98
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)
4.9/5£138.82
EnhanBili Best Price Mean Well LRS-350-12 350W 12V 30A Switching Power Supply
4.8/5£30.66
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
4.8/5£44.97
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£100
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£143.42
Corsair RM Series, RM850, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply, Microsoft Modern Standby (CP-9020196-NA)
4.8/5£370.80
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£86.06
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 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
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£161.43
CORSAIR SF850 (2024) Fully Modular 80 PLUS Platinum ATX Power Supply with Low Noise – ATX 3.1 Suitable – PCIe 5.1 Prepared – SFX to ATX Bracket Included – Black
4.7/5£198.01
ASUS ROG Loki SFX-L 850W Platinum White Edition (Fully Modular Power Supply, 80+ Platinum, 120mm PWM ARGB Fan, Aura Sync, ATX 3.0 Compatible, PCIe 5.0 Ready, 10 Year Warranty)
4.7/5£365.17
CORSAIR CX550 80 PLUS Bronze Non Modular Low-Noise ATX 550 Watt Power Supply - UK - Black
4.6/5£47.99