• Sale
  • Blogs
  • About us
  • Sale
Home & Interior
Home

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!

Try flexible payments withKlarnaLearn how

Filter
  • PSU Units
Product Properties
Connections
Cooling
Power Source
Measures

1000+ products

Show as table
PSU Units ADP 400FR Power Supply PS5 100-127V 200-240V
ADP 400FR Power Supply PS5 100-127V 200-240V
£68.11
1 store
PSU Units NZXT C850 Gold ATX 3.1 Fully Modular PC Gaming Power Supply
NZXT C850 Gold ATX 3.1 Fully Modular PC Gaming Power Supply
Gold 80 PLUS Certification
£129.85
1 store
PSU Units MSI MAG A750GL PCIe5 Power Supply Unit
MSI MAG A750GL PCIe5 Power Supply Unit
£117.59
1 store
PSU Units DPS650AB-30A Power Supply Unit
DPS650AB-30A Power Supply Unit
£87.17
1 store
PSU Units Jehiatek 150W 24Pin 12V DC Input Mini ITX PSU ATX PC Switch
Jehiatek 150W 24Pin 12V DC Input Mini ITX PSU ATX PC Switch
£22.53
1 store
PSU Units Gigabyte P550SS PCIe 5.0 80 Plus Silver Power Supply
Gigabyte P550SS PCIe 5.0 80 Plus Silver Power Supply
Silver 80 PLUS Certification
£76.72
1 store
PSU Units Sodial Dc-ATX 160W Direct Plug Module Conversion Board
Sodial Dc-ATX 160W Direct Plug Module Conversion Board
£15.59
1 store
PSU Units 300W Mini ITX Flex ATX PSU Computer Power
300W Mini ITX Flex ATX PSU Computer Power
£19.39
1 store
Gamemax 600W Rampage Power Supply
Gamemax 600W Rampage Power Supply
£54.26
1 store
Sodial Dc Atx Psu Box 12v 160w
Sodial Dc Atx Psu Box 12v 160w
£15.59
1 store
FSP ATX 250W Switching Power Supply
FSP ATX 250W Switching Power Supply
£18.53
1 store
150W 24Pin 12V Input PSU ATX PC
150W 24Pin 12V Input PSU ATX PC
£34.99
1 store
Corsair RM1000e Fully Modular Low-Noise ATX Power Supply
Corsair RM1000e Fully Modular Low-Noise ATX Power Supply
£188.16
1 store
24pin ATX Wide Voltage 12V 200W PC Supply Module
24pin ATX Wide Voltage 12V 200W PC Supply Module
£39.29
1 store
Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply
Corsair HX1000i Fully Modular Ultra-Low Noise ATX Power Supply
£259.98
1 store
Greenzech Passive PFC Gaming Computer Power Supply
Greenzech Passive PFC Gaming Computer Power Supply
£214.46
1 store
Gigabyte P550SS PCIe 5.0 80 Plus Silver Power Supply
Gigabyte P550SS PCIe 5.0 80 Plus Silver Power Supply
Silver 80 PLUS Certification
£79.79
1 store
Typecat 600W PC PSU Power Supply Gaming Source
Typecat 600W PC PSU Power Supply Gaming Source
£46.83
1 store
750W Power Supply
750W Power Supply
£25
1 store
MSI Mag A850GL White PCIe5 Power Supply Unit
MSI Mag A850GL White PCIe5 Power Supply Unit
Gold 80 PLUS Certification
£168.22
1 store
400W ATX Full Modular PSU Flex
400W ATX Full Modular PSU Flex
£52.27
1 store
Sodial Dc 19v Dc Atx Psu 24pin 2x
Sodial Dc 19v Dc Atx Psu 24pin 2x
£56.39
1 store
MSI MPG A850G PCIe5 Power Supply Unit 850W
MSI MPG A850G PCIe5 Power Supply Unit 850W
Gold 80 PLUS Certification
£137.63
1 store
Jojomino DC 12V 300W 24Pin ATX Motherboard Connector Mini
Jojomino DC 12V 300W 24Pin ATX Motherboard Connector Mini
£24.90
1 store
Saudism 150W 24Pin 12V DC Input Peak Mini ITX
Saudism 150W 24Pin 12V DC Input Peak Mini ITX
£21.75
1 store
Fujitsu 800W Platinum
Fujitsu 800W Platinum
£243.30
1 store
Corsair HX1200i Fully Modular Ultra-Low Noise ATX Power Supply
Corsair HX1200i Fully Modular Ultra-Low Noise ATX Power Supply
£298.22
1 store
Be Quiet! Pure Power 13 M 850W PCIe 5.1 GPUs
Be Quiet! Pure Power 13 M 850W PCIe 5.1 GPUs
Gold 80 PLUS Certification
£145.28
1 store
Greenzech 650W PSU PC Power Supply Unit
Greenzech 650W PSU PC Power Supply Unit
£140.51
1 store
Cooler Master MWE Gold 1050 V2 ATX 3.1 Fully Modular PSU
Cooler Master MWE Gold 1050 V2 ATX 3.1 Fully Modular PSU
Gold 80 PLUS Certification
£152.86
1 store
Bloc D'alimentation Modulaire Complet ATX 250 W
Bloc D'alimentation Modulaire Complet ATX 250 W
£19.39
1 store
Corsair RM850e Fully Modular Low-Noise ATX Power Supply
Corsair RM850e Fully Modular Low-Noise ATX Power Supply
Gold 80 PLUS Certification
£174.35
1 store
400W PSU ATX Full Modular Power Supply
400W PSU ATX Full Modular Power Supply
£27.36
1 store
Kepptory 2X 450W 24Pin 12V Input Output Realan Input
Kepptory 2X 450W 24Pin 12V Input Output Realan Input
£72.33
1 store
Typecat Power Supply Unit DC 12V 160W ATX 24Pin Motherboard Switch
Typecat Power Supply Unit DC 12V 160W ATX 24Pin Motherboard Switch
£15.74
1 store
Sodial Dc-ATX 160W Direct Plug Module Conversion Board
Sodial Dc-ATX 160W Direct Plug Module Conversion Board
£15.59
1 store
Computer Power Supply ATX 200W Peak 450W 4Pin 2 SATA
Computer Power Supply ATX 200W Peak 450W 4Pin 2 SATA
£90.02
1 store
NZXT C1000 Gold Core 1000W ATX Power Supply
NZXT C1000 Gold Core 1000W ATX Power Supply
Gold 80 PLUS Certification
£173.99
1 store
Corsair RM850x Fully Modular Low-Noise ATX Power Supply
Corsair RM850x Fully Modular Low-Noise ATX Power Supply
Gold 80 PLUS Certification
£154.85
1 store
12V 300W 24Pin ATX Motherboard Connector
12V 300W 24Pin ATX Motherboard Connector
£46.44
1 store
NZXT C850 Gold ATX 3.1 Fully Modular PC Gaming Power Supply
NZXT C850 Gold ATX 3.1 Fully Modular PC Gaming Power Supply
£129.85
1 store
Tauoh 400W PSU ATX Full Modular Power Supply Flex Module
Tauoh 400W PSU ATX Full Modular Power Supply Flex Module
£39.90
1 store
PSU ATX 24PIN PC Power Supply Unit
PSU ATX 24PIN PC Power Supply Unit
£78.11
1 store
ASUS ROG Strix 1200W Platinum PSU
ASUS ROG Strix 1200W Platinum PSU
Platinum 80 PLUS Certification
£367.04
1 store
Saudism ATX 150W 24-Pin Netzteilmodul PSU Auto ITX
Saudism ATX 150W 24-Pin Netzteilmodul PSU Auto ITX
£28.48
1 store
260W Power Supply Unit
260W Power Supply Unit
£72.88
1 store
PCI-E 6PIN Input DC 12V 300W ATX Switch
PCI-E 6PIN Input DC 12V 300W ATX Switch
£86.37
1 store
Greenzech 750W US Plug ATX Fully Modular Power Supply
Greenzech 750W US Plug ATX Fully Modular Power Supply
Gold 80 PLUS Certification
£622.46
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.

You’ve viewed 48 out of 1926 products

1

...

7

...

14

16

18

...

30

...

41

*Pay in 24 installments with Klarna, APR 21.90%: Borrowing more than you can afford, or paying late, may make it harder to get credit in the future. Credit subject to status. 18+. UK residents only. A downpayment of 10% or higher may be required. Klarna Financing has a representative 21.9% APR (fixed). Representative example: 21.9% APR representative based on a loan amount of £1200 repayable over 24 months at an interest rate of 21.9% p.a. (Fixed). 23 monthly payments of £61.06 and last payment of £55.01. Total amount payable of £1,463.39. Total charge for credit £263.39. Minimum and maximum purchase amount £250 - £10,000. Lender: Klarna Financial Services UK Limited (nr 14290857). T&Cs apply. Pay in 3: Klarna’s Pay in 3 is an unregulated credit agreement. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. T&Cs and late fees apply.

Advertisement

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.

Shop smarter with PriceRunner

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.

Filter and sort

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.

Reviews: See what other users think

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.

PriceRunner
  • About us
  • Contact us
  • Newsroom
  • Job openings

Since 1999, PriceRunner has helped millions of visitors find the best products at the best prices.

PriceRunner is entirely independent and free to use. Our vision is to be your go-to site that you can always count on when comparing products and prices. PriceRunner became a part of Klarna 2022.

You can compare prices and products with us in:

Sweden, Denmark, The UK, Norway, USA, Germany, Austria, Finland, France, Ireland, Italy, Netherlands, Spain

Copyright 1999-2026 Klarna Technologies AB