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PSU Units

Looking for the right PSU? At PriceRunner, we guide you to the best choice for your needs. Whether you're building a new PC or upgrading an existing one, we list a wide range of PSUs from various brands and retailers. Use our handy category filters to narrow your options by wattage, efficiency rating, or price range. This makes it easy to find the PSU unit that matches your requirements. Compare prices and features side-by-side to ensure you get the best value for your money. Our comprehensive listings are updated regularly to provide you with the most accurate information. We aim to simplify your decision-making process and help you find what you're looking for without any hassle. Ready to power up your PC with the right PSU? Begin here and make the right choice for your setup!

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PSU Units Be Quiet! Straight Power 11 Platinum 750W
Be Quiet! Straight Power 11 Platinum 750W
Platinum 80 PLUS Certification
£159.90
2 stores
PSU Units Be Quiet! Pure Power 11 CM 600W
Be Quiet! Pure Power 11 CM 600W
Gold 80 PLUS Certification
£87.47
2 stores
PSU Units Chieftec BDF-500S 500W
Chieftec BDF-500S 500W
Bronze 80 PLUS Certification
£72.39
2 stores
PSU Units Corsair CX650 650W
Corsair CX650 650W
Bronze 80 PLUS Certification
£70.57
2 stores
PSU Units Silverstone SFX Series ST45SF 450W
Silverstone SFX Series ST45SF 450W
Bronze 80 PLUS Certification
£69.98
3 stores
PSU Units Cooler Master PSU MWE Gold 1250 V2 ATX3.1 Cord
Cooler Master PSU MWE Gold 1250 V2 ATX3.1 Cord
£167.97
3 stores
PSU Units Lian Li SP850 V2 Gold Modular Power Supply
Lian Li SP850 V2 Gold Modular Power Supply
£124.99
2 stores
PSU Units Montech Century II 1050W PCIE 5.1 80+ Gold Fully Modular Quiet
Montech Century II 1050W PCIE 5.1 80+ Gold Fully Modular Quiet
£99.98
2 stores
Gigabyte GP-UD850GM PG5 V2 Power Supply Unit
Gigabyte GP-UD850GM PG5 V2 Power Supply Unit
£133.93
2 stores
Cooler Master Elite Gold 750W
Cooler Master Elite Gold 750W
£116.03
4 stores
Cooler Master Netzteil Elite Gold 850FM
Cooler Master Netzteil Elite Gold 850FM
£115.45
4 stores
Corsair RM750e 2025 750W ATX 3.1
Corsair RM750e 2025 750W ATX 3.1
Gold 80 PLUS Certification
£148.40
2 stores
Cisco PWR-C49M-1000AC 1000 Watts AC Power Supply
Cisco PWR-C49M-1000AC 1000 Watts AC Power Supply
£72
2 stores
Gigabyte UD1000GM PG5 V2 ICE Power Supply Unit
Gigabyte UD1000GM PG5 V2 ICE Power Supply Unit
£116.26
2 stores
Antec GSK 750 V2 80 Plus Gold Power Supply
Antec GSK 750 V2 80 Plus Gold Power Supply
£99.95
2 stores
Fractal Design Ion 3 Gold 1000W Fully Modular 80+ Gold ATX 3.1
Fractal Design Ion 3 Gold 1000W Fully Modular 80+ Gold ATX 3.1
£139.99
2 stores
Lian Li SP750 750W White
Lian Li SP750 750W White
Gold 80 PLUS Certification
£229.03
4 stores
Cooler Master 750W MWE Gold V3 White Edition 80 Plus
Cooler Master 750W MWE Gold V3 White Edition 80 Plus
£75.99
3 stores
Corsair CP-9020293-EU ATX 850W Power Supply
Corsair CP-9020293-EU ATX 850W Power Supply
Gold 80 PLUS Certification
£158.72
2 stores
Corsair CP-9020294-EU 1000W 80 Plus Gold Power Supply
Corsair CP-9020294-EU 1000W 80 Plus Gold Power Supply
Gold 80 PLUS Certification
£197.04
2 stores
Cooler Master 850W MWE Gold V3 ATX 3.1 Power Supply
Cooler Master 850W MWE Gold V3 ATX 3.1 Power Supply
Gold 80 PLUS Certification
£120.99
2 stores
MSI MAG A750GN 750W 80 Plus Gold Rated ATX 3.0 Power Supply Unit
MSI MAG A750GN 750W 80 Plus Gold Rated ATX 3.0 Power Supply Unit
Gold 80 PLUS Certification
£79.99
2 stores
Montech Century II 1200W
Montech Century II 1200W
Gold 80 PLUS Certification
£119.99
3 stores
Enermax Maxpro IV 550 Watt ATX Gaming PC
Enermax Maxpro IV 550 Watt ATX Gaming PC
£87.13
2 stores
Fortron FSP Vita BD 650W Wired ATX3.1 PSU
Fortron FSP Vita BD 650W Wired ATX3.1 PSU
Bronze 80 PLUS Certification
£47.99
2 stores
Cooler Master X Silent Edge 80Plus Platinum 850W Fanless Power Supply
Cooler Master X Silent Edge 80Plus Platinum 850W Fanless Power Supply
Platinum 80 PLUS Certification
£298.25
2 stores
Endorfy Supremo FM6 850w ATX Power Supply Unit
-18%
Endorfy Supremo FM6 850w ATX Power Supply Unit
Gold 80 PLUS Certification
£84.82
£102.94
2 stores
Chieftec Smart GPS-600A8 600W
Chieftec Smart GPS-600A8 600W
White (Standard) 80 PLUS Certification
£122.85
2 stores
Inter-Tech Argus APS-420W
Inter-Tech Argus APS-420W
White (Standard) 80 PLUS Certification
£65.25
2 stores
Thermaltake TR2 S 700W
Thermaltake TR2 S 700W
White (Standard) 80 PLUS Certification
£50
2 stores
Cougar PC-Netzteil STC 500 500W
Cougar PC-Netzteil STC 500 500W
£84.19
2 stores
MSI MEG Ai1600T PCIe5 Power Supply Unit 1600 W 24-pin ATX ATX Black
MSI MEG Ai1600T PCIe5 Power Supply Unit 1600 W 24-pin ATX ATX Black
Platinum 80 PLUS Certification
£549.94
5 stores
Chieftec Smart PSF-400B 400W
Chieftec Smart PSF-400B 400W
Bronze 80 PLUS Certification
£110.57
2 stores
Chieftec A-80 CTG-650C 650W
Chieftec A-80 CTG-650C 650W
White (Standard) 80 PLUS Certification
£144.87
2 stores
Chieftec Eco GPE-700S 700W
Chieftec Eco GPE-700S 700W
Bronze 80 PLUS Certification
£86.99
2 stores
Cougar X2 1050W Power Supply Atx3.1 Modular
Cougar X2 1050W Power Supply Atx3.1 Modular
£231.74
2 stores
PowerWalker VFI 1000 TG Power Supply
PowerWalker VFI 1000 TG Power Supply
£344.59
5 stores
MSI MAG A750BN PCIe5 750W PSU
MSI MAG A750BN PCIe5 750W PSU
£72
2 stores
Cooler Master MWE Bronze 750 V3 750 Watt
Cooler Master MWE Bronze 750 V3 750 Watt
£49.97
4 stores
NZXT C1500 1500W ATX Power Supply Unit
NZXT C1500 1500W ATX Power Supply Unit
Platinum 80 PLUS Certification
£199.99
2 stores
Corsair RM850e (2025)
Corsair RM850e (2025)
Gold 80 PLUS Certification
£109.31
2 stores
Thermaltake German Series Berlin PC Power Supply Unit 750 W
Thermaltake German Series Berlin PC Power Supply Unit 750 W
£96.76
2 stores
Corsair RM650e( 2025)650W
Corsair RM650e( 2025)650W
Gold 80 PLUS Certification
£104.74
2 stores
Fujitsu Modular PSU 500W Titanium
Fujitsu Modular PSU 500W Titanium
Titanium 80 PLUS Certification
£182.52
2 stores
MSI MAG A1250GL PCIe5 1000 Watt
MSI MAG A1250GL PCIe5 1000 Watt
Gold 80 PLUS Certification
£228.73
2 stores
GamerStorm PN850M 850W White
GamerStorm PN850M 850W White
Gold 80 PLUS Certification
£126.91
2 stores
Montech Titan PLA 750W PCIe 5.1 80+ Modular ATX 3.1
Montech Titan PLA 750W PCIe 5.1 80+ Modular ATX 3.1
Platinum 80 PLUS Certification
£99.98
2 stores
Montech Titan PLA 850W
Montech Titan PLA 850W
Platinum 80 PLUS Certification
£109.99
2 stores

PSU Units: 3 things to consider before buying

Before purchasing PSU Units, it's crucial to determine the power requirements of your computer system. Calculate the total wattage needed by adding up the power consumption of all components, including the CPU, GPU, and peripherals. We recommend opting for a PSU Unit with a wattage capacity slightly above your calculated needs to ensure efficiency and allow for future upgrades. For instance, if your system requires 450 watts, consider a PSU Unit that offers 550 watts or more.

Efficiency ratings are essential when choosing PSU Units as they indicate how effectively power is converted from AC to DC. Look for units with an 80 Plus certification, which ensures at least 80% energy efficiency at various loads. Higher certifications like 80 Plus Gold or Platinum offer even better efficiency, reducing electricity costs and heat output. Investing in efficient PSU Units not only benefits your wallet but also contributes to a greener environment.

Ensure that the PSU Units you consider have sufficient connectors for your components. Check for compatibility with your motherboard, graphics card, and additional peripherals such as SSDs and cooling systems. Modular PSU Units offer flexibility by allowing you to use only the cables you need, improving airflow and reducing clutter inside your case. This feature is particularly beneficial if you plan on upgrading components in the future.

PSU UNITS

FAQ

PSU Units are Power Supply Units that provide electricity to your computer components. They convert AC from the wall into DC that your computer can use. When choosing a PSU Unit, consider wattage, efficiency ratings like 80 Plus, and the number of connectors needed for your components.

PSU Units are selected based on power requirements and compatibility with your system. Calculate the total wattage needed by all components and choose a unit with slightly higher capacity. Check for efficiency ratings and ensure it fits in your computer case.

PSU Units' efficiency indicates how much power is lost as heat during conversion. Higher efficiency means less energy waste, lower electricity bills, and reduced heat output. Look for units with an 80 Plus certification, which ensures at least 80% efficiency at various loads.

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Power up your build: Choosing the right PSU

Selecting the right power supply unit (PSU) is crucial for your computer's performance and longevity. It ensures your system runs smoothly by delivering consistent power to all components. Let's explore the different types and features of PSU units to help you make the best choice for your setup.

Types of PSU units

PSU units come in various types, each designed to meet specific needs. Among the popular options are SFX and ATX. SFX units are compact, making them ideal for small form factor cases. They pack a punch despite their size, providing reliable power for mini-ITX builds. On the other hand, ATX units are larger and suited for standard or mid-tower cases, offering more power and additional features.

Efficiency ratings

Efficiency is a key factor when choosing a PSU. It indicates how much power is converted into usable energy, with the rest lost as heat. The 80 PLUS certification is a standard measure of efficiency. Bronze, Silver, and Gold are common ratings, with Gold being more efficient than Bronze. For those seeking top-tier efficiency, Platinum and Titanium ratings offer even better performance, ensuring minimal energy waste and lower electricity bills.

Key features to consider

When selecting a PSU, consider features like modularity and cable management. Modular PSUs allow you to connect only the cables you need, reducing clutter and improving airflow. This feature is especially useful in compact builds. Additionally, look for units with silent operation, achieved through efficient cooling fans or fanless designs. A PSU with a high-quality fan will run quietly, even under load, providing a pleasant computing experience.

Colour and aesthetics

Aesthetics might not affect performance, but they do enhance your build's appearance. White PSU units are a popular choice for those aiming for a sleek, modern look. They blend seamlessly with white cases and components, creating a cohesive aesthetic. Whether you're building a minimalist setup or a vibrant gaming rig, the right colour can make a difference.

Understanding wattage requirements

Determining the correct wattage is essential for a stable system. Calculate the total power consumption of your components, including the CPU, GPU, and peripherals. It's wise to choose a PSU with a bit more wattage than needed to allow for future upgrades. This ensures your system remains reliable and efficient over time.

Budget and brand considerations

While it's tempting to save money, investing in a quality PSU is crucial. A reliable unit from a reputable brand offers peace of mind and protection for your components. Brands like Corsair, EVGA, and Seasonic are known for their dependable PSU units. They offer a range of options to suit different budgets and requirements, making them a good choice for any build.

Make a well-thought-out decision by considering these factors when choosing a PSU. Use PriceRunner to compare prices and find the best deal on PSU units for your next build.

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