WhichOne › electronics › computer › computer part › power supply unit

The best power supply units in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 19.05.2025

Filter

Sort

Brand:Reduced items only:

Best choice

CORSAIR RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

Corsair

16% off

free shipping

show more show less

9,9

Offer ends in:

06Days

07hours

28minutes

21seconds

Check price

Show on Amazon

Features

Fully Modular Reliable and efficient low-noise power supply with fully modular cabling, so you only have to connect the cables your system needs.
Cybenetics Gold-Certified Rated for up to 91% efficiency, resulting in lower power consumption, less noise, and cooler temperatures.
Embossed Cables with Low-Profile Combs Sleek, ultra-flexible embossed cables look great and make installing and connecting the RMx a breeze.

£ 124.97

£ 124.99

£ 124.99

£ 147.99

£ 149.00

MSI MPG A1000G PCIE5 Power Supply Unit, UK Plug - 1000W, 80 Plus Gold Certified, Fully Modular ATX 3.0, PCIe 5.0 GPU Support, Japanese 105°C Capacitors, 0% RPM Mode, Flat Cables - 10 Year Warranty

MSI

33% off

free shipping

show more show less

9,8

Check price

Show on Amazon

Features

0% RPM MODE - 0% RPM Mode automatically deactivates the 135mm fluid dynamic bearing (FDB) fan when TDP falls below 40%, which increases energy efficiency & reduces unnecessary noise; A manual button at the rear can disable 0% RPM Mode
ATX 3.0 FULLY MODULAR - With ATX 3.0, the PSU can handle up to 2x total & 3x GPU power excursions, supporting even the most demanding GPUs; A full modular format with flat black cables (storage bag included) helps reduce clutter & improve airflow
PCIe 5.0 GPU SUPPORT - With the native 16-pin (12VHPWR) PCIe connector, the PSU can feed up to 600W of power to a PCIe 5.0 GPU (NVIDIA & AMD supported); The MPG A1000G PCIE5's single-railed design provides ample power to the system
DURABLE DESIGN - A half-bridge LLC with DC-to-DC converter & active PFC design ensures reliable output (OCP, OVP, OPP, OTP, SCP, UVP protections); Japanese 105 C capacitors provide optimal stability; Includes a 10-year warranty

£ 119.99

£ 399.00

Aerocool Integrator 700 W 80 Plus Bronze Power Supply Unit with UK 3 Pin Power Lead

AeroCool

13% off

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

12cm Silent Fan - 12cm silent black fan with smart thermal fan speed control circuit.
Two PCIe - Two PCIe 6+2pin connector for mid-range graphic card.
Single 12V Rail - Single 12V rail for high compatibility and extreme high current output.
7 SATA - Up to 7 SATA connectors supports for numbers of hard drives.

GIGABYTE UD850GM Power Supply Unit - 850W, 80 PLUS Gold Certified, Fully Modular, Japanese Capacitors, UK plug

Gigabyte

free shipping

show more show less

9,4

Check price

Show on Amazon

Features

Main Japanese capacitors
Fully modular design
120mm smart hydraulic bearing fan

£ 89.00

£ 99.99

£ 141.99

Cooler Master V850 SFX Gold, UK Plug - 850W 80 PLUS Gold, Fully Modular Power Supply Unit, SFF/mini-ITX PSU, Semi-Fanless Mode, SFX-to-ATX Bracket, 10 Year Warranty, Black Edition, Quiet 92 mm FDB Fan

Cooler Master

free shipping

show more show less

9,4

Check price

Show on Amazon

Features

SMALL FORM FACTOR - The V850 SFX Gold PSU is designed specifically for small form factor (SFF) mini-ITX PC cases with its compact dimensions (100 x 125 x 63.5 mm) but can also be installed in ATX cases via the complementary SFX-to-ATX bracket
QUIET FDB FAN - Employs an elite 92mm fluid dynamic bearing (FDB) fan which keeps both the temperature and noise to a minimum and includes a semi-fanless mode when under 15% maximum operating load
FULLY MODULAR CABLING - Complete cable management enables sophisticated case builds and improves internal ventilation by eliminating unnecessary cabling (ATX 24 Pin x 1, EPS 4+4 x 1, EPS 8-Pin x 1, SATA x 8, Peripheral 4 Pin x 4, PCI-e 6+2 Pin x 4)
BUILT TO LAST - The V850 SFX Gold PSU delivers long-term performance through outstanding component quality (100% Japanese capacitors) and comes with a 10 year standard warranty for ultimate peace of mind

Switching Power Supply PSU 850W ATX with 12cm Silent Black Fan/for PC Computer/iCHOOSE

iChoose Limited

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

PRODUCT INFO Switching Power Supply PSU 850W ATX with 12cm Silent Black Fan
DIMENSIONS 150mm x 85mm x 140mm (W x H x D)

LC-POWER 850 W Full Modular Power Supply Unit 80 Plus Platinum 135 mm Fan ATX PSU,92% Efficiency,Running Quiet,5xPCI-Express,for Gaming Computer,System Upgrades

LC-Power

free shipping

show more show less

9,3

Check price

Show on Amazon

Features

Function upgrade Support graphics card PCI-E 5.0, 12+4-Pin, compatible with PCI-E 6, 6+2-Pin. The function utilization rate reaches 92%. The fan reaches 135mm, and the 135mm fan adopts magnetic suspension bearings and a custom-designed rotor, which has high performance, low noise and excellent reliability.
Industrial protection 850W power supply with (OPP) over-power protection, (OVP) over-voltage protection, (SCP) short-circuit protection, (OCP) over-current protection (UVP) under-voltage protection (OT)P over-temperature protectionw
Connectors The Gaming power supply with 20+4-Pin Mainboard,4+4-Pin Mainboard 12V(8pin EPS) 4 Pin Mainboard 12V,PCI-Express 6+2-Pin,PCI-Express 5.0 12+4-Pin, STAT,PATA. the power supply allows for easy customization and hassle-free cable management
Supports standby sleep mode Supports Modern Standby sleep mode for extremely fast wake-from-sleep times and better low-load efficiency.standby 0.5W

Recommendation

SKE 1500VA/900W UPS Battery Backup & Surge Protector UPS Battery Backup Unit for Computer Router Modem Uninterruptible Power Supply

SKE SMART KEY ENERGY

free shipping

show more show less

9,2

Check price

Show on Amazon

Features

Uninterrupted Power Supply Provides an uninterrupted power supply when you switch power systems or sudden power outage, maintaining the connection of your computer, wifi router, modem. 4 sockets for battery backup and surge protection.
Voltage Stability Automatic voltage regulation protects your device from overcharging, surge, and short circuit, extending the service life of your device.
Smart LCD Screen Monitoring input output voltage, battery capacity and loading status in real-time. Can be turned off when not needed.
Management Software Works for windows, MacOS, Linux. Continuously monitoring devices. You can set it up to shut down the devices automatically in in case of emergencies and send notifications.

JUSTOP Black 650W PSU, ATX Switching Power Supply, Computer Desktop PC, With 120mm Fan, 8-Pin 12V, 6+2 Pin PCI-E, 6x SATA

JUSTOP

free shipping

show more show less

9,2

Check price

Show on Amazon

Features

650W ATX Power Supply With 120mm Cooling Fan For Desktop PCs
Power Factor Control (PFC). Over voltage protection, Over power protection, short circuit protection and thermal overload cut-off protection.
Connectors - 20+4 pin (540mm); 4+4 pin (550mm); SATA x3, Molex x1 (640mm); SATA x3; PCIe x1 (450mm)

Evo Labs BR750-12BL power supply unit 750 W 20+4 pin ATX ATX Black

EVO LABS

14% off

free shipping

show more show less

9,2

Check price

Show on Amazon

£ 24.95

£ 28.95

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these power supply units.

GameMax 700W Rampage Power Supply (No Power Cable inc.), Non-Modular, APFC, Japanese Tk Main Capacitor, 80 Plus Bronze, 88% Efficiency, 14cm Cooling Fan, Real Power Gaming | Black

Flat Black Cables - Improve your aesthetics flat black cables have been used to enable builders to easily manage and save space improving airflow and creating a great looking PC.

~~£ 47.99~~ free shipping

Check price

BPC Energy UPS Power Supply UK - 1000VA UPS with 8 Outlets - UK Plug BS1363A - Surge Protected | Reliable Computer Uninterruptible Power Supply Units for Home & Office

Power Capacity The PO1000 offers robust power management by providing a stable UPS power supply UK. With 1000VA, it ensures your devices remain operational during power outages and fluctuations, safeguarding vital equipment.

free shipping

Check price

ASUS ROG Loki SFX-L 850W Platinum Power Supply (Fully Modular Power Supply, 80+ Platinum, Lambda A Certified, 120 mm PWM ARGB Fan, Aura Sync RGB Lighting, ATX 3.0 Compatible, PCIe 5.0 Ready, White)

Compact Form Factor - SFX-L 125 x 125 x 63.5 mm

free shipping

Check price

APC by Schneider Electric BACK-UPS ES - BE850G2-UK - Uninterruptible Power Supply 850VA (8 Outlets, Surge Protected, 2 USB Charging Ports), Black, Pack of 1

Apc Back-UPS essential series provides battery backup and surge Protection ideal for your home and home office

~~£ 165.11~~ free shipping

Check price

GAMDIAS 750W UK PSU Power Supply for ATX PC Computer, 80+ Plus Bronze, Non-Modular, MB Sync ARGB, Built-in 30 Light Effects, Low Noise PWM Fan, Black

Customizable and Adaptive KRATOS M1-750B supports addressable RGB sync via motherboard manufacturer's sync software and also has 30 built-in lighting effects easily accessible with a simple button switch.

free shipping

Check price

NZXT C1200 PSU - 1200 Watt Gaming PC Power Supply – ATX 3.0 – PCIe 5.0 12VHPWR Connector – 80 Plus Gold Efficiency – Fully Modular – Zero Fan Mode – Black Sleeved Cables – 10 Year Warranty – Black

NEXT-GEN POWER Pumps up to 600 watts of power to PCIe 5.0 GPUs like the NVIDIA GeForce RTX 4090 over a single 16-pin connector.

free shipping

Check price

CiT FX Pro 700W Power Supply (No Power Cable inc.), Non Modular, APFC, Japanese Tk Main Capacitor, 80 Plus Bronze, 88% Efficiency, 14cm Cooling Fan, For Pro Gamers | Black

Japanese TK Main Capacitor - With a Japanese TK main capacitor included the FX Pro Range delivers a reliable life expectancy and quality assurance.

free shipping

Check price

CyberPower BR1200ELCD-UK BRICs Series, 1200VA/720W, 6 UK Outlets (3 Surge only, 3 UPS and Surge), 1 USB Charging Port, AVR, Brick Format

6 x 3 Pin UK Plug sockets (3 Surge Only + 3 Battery and Surge)

~~£ 221.99~~ free shipping

Check price

Tecnoware Power Systems - ATX Power Supply | 400W Hyper Stream Bronze | Supports NVIDIA GeForce GTX & RTX | Quiet 4.7 Inch Fan | PCI-E, CPU 4+4, SATA, Molex Connectors, Eco-Friendly Packaging, 400W

Optimized Wiring for Easy Installation Featuring long flat cables up to 80cm, this power supply is ideal for configuring in the lower part of the PC case; Simplify your setup and maintain a clean, organised build with all connectors in the right place

free shipping

Check price

be quiet! BN283 Straight Power 11 750W ATX Black power supply unit - power supply units (750 W, 100-240, 820 W, 50-60, Active, 150 W),gold,BN283

Virtually inaudible Silent Wings 3 135mm fan

free shipping

Check price

S-Union 240W Power Supply Unit PSU for DELL Optiplex 390 790 960 990 3010 7010 9010,Only for Small Form Factor SFF H240ES-00 D240ES-00 AC240AS-00 AC240ES-00 DPS-240WB L240AS-00 H240AS-00 3WN11

Compatible Model The power supply is only work for Dell OptiPlex 390 790 960 990 3010 7010 9010 Desktop (Dell SFF System) . AC Input 100-240V 4A (50-60HZ), DC Output Max Output Power 240W.

free shipping

Check price

MSI MAG A850GL PCIE5 Power Supply Unit, 850W, 80 Plus Gold, Fully Modular, ATX 3.0, PCIe 5.0 GPU Support, Black Flat Cables, 7 Year Warranty

STABLE PERFORMANCE - A 120 mm FDB fan with dynamic fluid storage (fluid dynamic bearing) ensures exceptional efficiency and durability. 105 C capacitors ensure high stability under heavy loads

~~£ 119.99~~ free shipping

Check price

The best power supply units in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these power supply units.

Our offer