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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 HPE P9R56A G2 Metered 0U Single Phase Vertical AC
HPE P9R56A G2 Metered 0U Single Phase Vertical AC
£1,795.99
Out of stock
PSU Units Vida 650W Power Supply 140mm
Vida 650W Power Supply 140mm
Bronze 80 PLUS Certification
£41.99
Out of stock
PSU Units Cooler Master MWE 850W V2 Power Supply
Cooler Master MWE 850W V2 Power Supply
Gold 80 PLUS Certification
£85.99
Out of stock
PSU Units Gigabyte 550W ATX Power Supply with 80 Plus Silver
Gigabyte 550W ATX Power Supply with 80 Plus Silver
£39.48
1 store
PSU Units Cooler Master MWE Gold V2 ATX 3.1 850W
Cooler Master MWE Gold V2 ATX 3.1 850W
Gold 80 PLUS Certification
£79.99
Out of stock
PSU Units Enermax Cyberg 2 650w Gaming Power Supply
Enermax Cyberg 2 650w Gaming Power Supply
Gold 80 PLUS Certification
£66.48
1 store
PSU Units Enermax Cyberg 2 850w Gaming Power Supply
Enermax Cyberg 2 850w Gaming Power Supply
Gold 80 PLUS Certification
£81.48
1 store
PSU Units Enermax ERV750G-AHG-NAC Power Supply Unit 750 W
Enermax ERV750G-AHG-NAC Power Supply Unit 750 W
Gold 80 PLUS Certification
£77.48
1 store
Raritan PX4-559A-E8 Power Distribution Unit 24 AC Outlets Black
Raritan PX4-559A-E8 Power Distribution Unit 24 AC Outlets Black
£1,614.99
Out of stock
Asrock High-Performance 650W Steel Legend Power Supply Unit
Asrock High-Performance 650W Steel Legend Power Supply Unit
Gold 80 PLUS Certification
£92.48
1 store
Chieftec Smart GPF-400P 400 W TFX - Netzteil
Chieftec Smart GPF-400P 400 W TFX - Netzteil
£45.98
1 store
Hiditec GDX1050 Power Supply 80 Plus
Hiditec GDX1050 Power Supply 80 Plus
Gold 80 PLUS Certification
£134.48
1 store
Akyga PC Power Supply Unit 600 W ATX 80ÂPLUS
Akyga PC Power Supply Unit 600 W ATX 80ÂPLUS
£54.68
1 store
Corsair RM650e( 2025)650W
Corsair RM650e( 2025)650W
Gold 80 PLUS Certification
£89.98
1 store
Corsair RM750e 2025 750W ATX 3.1
Corsair RM750e 2025 750W ATX 3.1
Gold 80 PLUS Certification
£110.48
1 store
Mean Well UHP-750-12 12V 12V DC SMPSU 12V DC
Mean Well UHP-750-12 12V 12V DC SMPSU 12V DC
£188.05
1 store
UNYKAch 550W Power Supply
UNYKAch 550W Power Supply
£29.98
1 store
Adata XPG 75261413 650W 80 Plus Power Supply
Adata XPG 75261413 650W 80 Plus Power Supply
Gold 80 PLUS Certification
£100.98
1 store
DeepCool PL550D 550W
DeepCool
DeepCool PL550D 550W
Bronze 80 PLUS Certification
£53.98
1 store
Asrock Steel Legend 1000W Gold ATX 1000W
Asrock Steel Legend 1000W Gold ATX 1000W
Gold 80-PLUS-Zertifizierung
£143.48
1 store
MSI MAG A1250GL PCIe5 1000 Watt
MSI MAG A1250GL PCIe5 1000 Watt
Gold 80 PLUS Certification
£189.48
1 store
XPG Power Supply 75261547
XPG Power Supply 75261547
Bronze 80 PLUS Certification
£56.48
1 store
Chieftec Vega PPG-850-S 850W
Chieftec Vega PPG-850-S 850W
Gold 80 PLUS Certification
£94.48
1 store
HP Power Supply Unit 750 W
HP Power Supply Unit 750 W
£411.99
Out of stock
Mars Gaming MPZE750SI ATX 750W 80 Plus Silver Power Supply
Mars Gaming MPZE750SI ATX 750W 80 Plus Silver Power Supply
£61.98
1 store
Thermaltake ToughPower GT Snow 850W
Thermaltake ToughPower GT Snow 850W
Gold 80 PLUS Certification
£95.98
1 store
Mars Gaming MPB550SIW 550W 80 Plus Bronze ATX Power Supply
Mars Gaming MPB550SIW 550W 80 Plus Bronze ATX Power Supply
£37.98
1 store
DeepCool PL650D 650W
DeepCool
DeepCool PL650D 650W
Bronze 80 PLUS Certification
£60.98
1 store
Chieftec Vega 750w Modular Power Supply
Chieftec Vega 750w Modular Power Supply
Gold 80 PLUS Certification
£82.98
1 store
Tacens 1RECOX550 ATX Power Supply 550W
Tacens 1RECOX550 ATX Power Supply 550W
£38.48
1 store
Mars Gaming MPB650SI 650W ATX Power Supply
Mars Gaming MPB650SI 650W ATX Power Supply
Bronze 80 PLUS Certification
£47.98
1 store
Tacens 1RECOX750 ATX 750W Power Supply
Tacens 1RECOX750 ATX 750W Power Supply
£47.98
1 store
Mars Gaming MPB550SI 550W ATX Power Supply
Mars Gaming MPB550SI 550W ATX Power Supply
Bronze 80 PLUS Certification
£39.48
1 store
Tacens Anima Apiii850 Pc Power Supply
Tacens Anima Apiii850 Pc Power Supply
Bronze 80 PLUS Certification
£41.98
1 store
Mars Gaming MPB750SI ATX 750W 80 Plus Bronze Power Supply
Mars Gaming MPB750SI ATX 750W 80 Plus Bronze Power Supply
Bronze 80 PLUS Certification
£55.98
1 store
Tacens Anima APB650 Power Supply 650W
Tacens Anima APB650 Power Supply 650W
Bronze 80 PLUS Certification
£42.98
1 store
Mars Gaming MPB650W 650W Power Supply
Mars Gaming MPB650W 650W Power Supply
Bronze 80 PLUS Certification
£45.48
1 store
Phasak PH 9210 Power Supply System
Phasak PH 9210 Power Supply System
£257.48
1 store
Seasonic G12-GC-650 650W 80 Gold Power Supply
Seasonic G12-GC-650 650W 80 Gold Power Supply
Gold 80 PLUS Certification
£80.99
Out of stock
XPG 650W 80 Plus Gold Power Supply 75261237
XPG 650W 80 Plus Gold Power Supply 75261237
Gold 80 PLUS Certification
£90.98
1 store
Zalman Decamax ZM600-LX3 600W 80Plus PSU
Zalman Decamax ZM600-LX3 600W 80Plus PSU
£40.48
1 store
Gigabyte P650SS 650W ATX Power Supply
Gigabyte P650SS 650W ATX Power Supply
£47.98
1 store
Gigabyte Aorus Elite P850W ICE Power Supply
Gigabyte Aorus Elite P850W ICE Power Supply
£134.48
1 store
Gigabyte AORUS Elite AE1000PM PG5 1000W
Gigabyte AORUS Elite AE1000PM PG5 1000W
Platinum 80 PLUS Certification
£156.48
1 store
NZXT C1000 (2024) Black 1000W
NZXT C1000 (2024) Black 1000W
Gold 80 PLUS Certification
£151.48
1 store
Seasonic G12 GM-650 650W
Seasonic G12 GM-650 650W
Gold 80 PLUS Certification
£86.99
Out of stock
Adata XPG Core Reactor II VE 750W 80 Plus Gold Fully Modular Power Supply
Adata XPG Core Reactor II VE 750W 80 Plus Gold Fully Modular Power Supply
Gold 80 PLUS Certification
£81.48
1 store
NZXT C850 (2024) 850W
NZXT C850 (2024) 850W
Gold 80 PLUS Certification
£132.48
1 store

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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Find the best option with the help of our handy tools. Compare prices, apply smart filters, read user reviews, and explore price history—all in one place.

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To ensure that you've found a good deal, you can view the product's price history. Select a time period and whether you wish to include international prices. Price history for the past three months is shown by default, but you can also look into a longer time period. If you want to determine if a deal from a specific shop is as good as it seems you can click on "Choose store" above the price graph to show an individual shop's pricing history.

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