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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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1000+ products

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PSU Units Spactz 12V 300W DC Pico MINI
Spactz 12V 300W DC Pico MINI
£28.44
1 store
PSU Units Tlily PSU PICO-BOX 12V
Tlily PSU PICO-BOX 12V
£19.16
1 store
PSU Units Dell Server Power Supply 0NT154 528W
Dell Server Power Supply 0NT154 528W
£156.01
1 store
PSU Units Dell 495W Redundn Power Supply
Dell 495W Redundn Power Supply
£64.56
Out of stock
PSU Units Forever Pulse Power Supply Kemot 12V 5A Desktop
Forever Pulse Power Supply Kemot 12V 5A Desktop
£15.32
1 store
PSU Units Planet GPL-PWR75-AC 75-watt AC
Planet GPL-PWR75-AC 75-watt AC
£117.65
1 store
PSU Units Corsair HX1200i 1200W
Corsair HX1200i 1200W
Platinum 80 PLUS Certification
£258.28
1 store
PSU Units Gamemax GP-500 500W
Gamemax GP-500 500W
Bronze 80 PLUS Certification
£69.19
1 store
Lenovo ThinkSystem 750W Titanium Hot-Swap Gen2 Power Supply v3
Lenovo
Lenovo ThinkSystem 750W Titanium Hot-Swap Gen2 Power Supply v3
£220.27
1 store
Be Quiet! Straight Power 12 Platinum 1000W
Be Quiet! Straight Power 12 Platinum 1000W
Platinum 80 PLUS Certification
£229.37
1 store
HP Power Supply 300W Active
HP Power Supply 300W Active
£108.63
1 store
HP Power Supply 400W
HP Power Supply 400W
£111.27
1 store
HP Power Supply 300W Active
HP Power Supply 300W Active
£113.92
1 store
Thermaltake Smart BM3 550W Power Supply
Thermaltake Smart BM3 550W Power Supply
Bronze 80 PLUS Certification
£100.82
1 store
HP X331 165W Power Supply
HP X331 165W Power Supply
£167
1 store
Corsair RM750x Shift Fully Modular ATX Power Supply
Corsair RM750x Shift Fully Modular ATX Power Supply
Gold 80 PLUS Certification
£448.08
1 store
HPE Enterprise 399542-B21 power supply unit 700W
HPE Enterprise 399542-B21 power supply unit 700W
£55.73
1 store
Tlily DC PSU PICO-BOX 12V 160W Pico
Tlily DC PSU PICO-BOX 12V 160W Pico
£32.81
1 store
Gamemax GP550 White PSU 550W Power Plus
Gamemax GP550 White PSU 550W Power Plus
£30.99
2 stores
Dehner Elektronik SPE 500-24 SMPSU 24V 21A 500W
Dehner Elektronik SPE 500-24 SMPSU 24V 21A 500W
£240.41
1 store
Dehner Elektronik SPE 500-12 SMPSU 12V 41.7A 500W Low Profile
Dehner Elektronik SPE 500-12 SMPSU 12V 41.7A 500W Low Profile
£240.41
1 store
Juniper JPSU-650W-DC-AFO 650W DC Power Supply
Juniper JPSU-650W-DC-AFO 650W DC Power Supply
£3,720.77
Out of stock
Gigabyte UD750GM PG5 750W
Gigabyte UD750GM PG5 750W
Gold 80 PLUS Certification
£104.92
1 store
Dell PowerEdge 750W 80+ Platinum
Dell PowerEdge 750W 80+ Platinum
Platinum 80 PLUS Certification
£45.15
1 store
Dehner Elektronik SPE 150-05 AC/DC PSU
Dehner Elektronik SPE 150-05 AC/DC PSU
£85.60
1 store
Tlily 24Pin 12V 450W Realan Mini
Tlily 24Pin 12V 450W Realan Mini
£37.69
1 store
Cemo 240V 300W 1U Flex Power Active
-42%
Cemo 240V 300W 1U Flex Power Active
£102
£175.81
1 store
Dell 750W 80+ Platinum Power
Dell 750W 80+ Platinum Power
Platinum 80 PLUS Certification
£45.15
1 store
Corsair CX Series CX550 550 Watt 80 Plus Bronze ATX Power Supply
Corsair CX Series CX550 550 Watt 80 Plus Bronze ATX Power Supply
Bronze 80 PLUS Certification
£49.99
1 store
HPE Power Supply Unit 800 W Grey
HPE Power Supply Unit 800 W Grey
£153.62
1 store
Chieftec ZPU-700S 700 Watt Schwarz
Chieftec ZPU-700S 700 Watt Schwarz
White (Standard) 80 PLUS Certification
£111.51
1 store
Acer predator orion po3-620
Acer predator orion po3-620
£113.40
1 store
Cooler Master V850 SFX 850W 80 PLUS
Cooler Master V850 SFX 850W 80 PLUS
Gold 80 PLUS Certification
£187.67
1 store
ACE 750w 12cm
ACE 750w 12cm
£24.99
1 store
ASUS Prime 850W
ASUS Prime 850W
Gold 80 PLUS Certification
£124.48
2 stores
Gamemax GX850W 850W Fully Modular 80 Plus
Gamemax GX850W 850W Fully Modular 80 Plus
£63.99
1 store
CiT 800W FX Pro 14cm Fan APFC Bronze
CiT 800W FX Pro 14cm Fan APFC Bronze
£46.79
1 store
FSP Fortron Hydro PTM X PRO
FSP Fortron Hydro PTM X PRO
Platinum 80 PLUS Certification
£192.35
1 store
Cooler Master Elite Nex 230V 700W 120mm Fan
Cooler Master Elite Nex 230V 700W 120mm Fan
£100.97
1 store
Zalman ZM800-TXII Megamax Power Supply Unit
Zalman ZM800-TXII Megamax Power Supply Unit
£135.62
1 store
Endorfy PSU Vero L5 700
Endorfy PSU Vero L5 700
Bronze 80 PLUS Certification
£74.30
1 store
Tempest TP-MGPSU-650WB 650W
Tempest TP-MGPSU-650WB 650W
£125.84
1 store
Thermaltake PS-TPD-1200FNFAPE-3 PC power unit 1200
Thermaltake PS-TPD-1200FNFAPE-3 PC power unit 1200
Platinum 80 PLUS Certification
£215
1 store
Gigabyte UD1300GM PG5 Power Supply 1300 W
Gigabyte UD1300GM PG5 Power Supply 1300 W
Gold 80 PLUS Certification
£136.91
Out of stock
Lenovo ThinkSystem 450W Power Supply
Lenovo
Lenovo ThinkSystem 450W Power Supply
Titanium 80 PLUS Certification
£370.30
1 store
Montech Titan 850W
Montech Titan 850W
Gold 80 PLUS Certification
£89.99
1 store
Tempest PSU Pro 850W Gaming Power Supply
Tempest PSU Pro 850W Gaming Power Supply
£123.29
1 store
FSP Hydro GT PRO ATX3.0 Power Supply Unit
FSP Hydro GT PRO ATX3.0 Power Supply Unit
£144.18
Out of stock
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.

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.

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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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Searching for something particular? Filter by everything from price and brand to material or colour to see only the products relevant to you. Since delivery options and shipping costs can vary between shops, you can easily find your perfect match by filtering based on these criteria as well.

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Reviews from other users can provide valuable insights into the product's features and durability. Product ratings help you quickly assess popularity and customer satisfaction.

Price history: Find real deals

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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