• Black Friday
  • Sale
  • Blogs
  • About us
  • Sale
Home & Interior
Home Appliances

White PSU Units

Try flexible payments withKlarnaLearn how

Filter
  • PSU Units
Show only in stock
Product Properties
Connections
Cooling
Power Source
Measures
100+ products
White PSU Units ASUS ROG Loki SFX-L 850W Platinum
ASUS ROG Loki SFX-L 850W Platinum
Platinum 80 PLUS Certification
£159.99
9+ 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.

¹

Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. Credit subject to status. Ts&Cs and late fees apply.

²

Borrowing more than you can afford, or paying late, may make it harder to get credit in the future. Credit subject to status. A downpayment of 10% or higher may be required. Financing has a representative 21.9% APR (fixed). Representative example based on a loan amount of £1200 repayable over 6 months at an interest rate of 21.9% p.a. (Fixed). 5 monthly payments of £211.81 and last payment of £210.37. Total amount payable of £1,269.42. Total charge for credit £69.42. Minimum and maximum purchase amount £250 - £10,000. Lender: Klarna Financial Services UK Limited (nr 14290857). T&Cs and late fees apply

You’ve viewed 48 out of 164 products

1

34

Advertisement

¹

Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. Credit subject to status. Ts&Cs and late fees apply.

²

Borrowing more than you can afford, or paying late, may make it harder to get credit in the future. Credit subject to status. A downpayment of 10% or higher may be required. Financing has a representative 21.9% APR (fixed). Representative example based on a loan amount of £1200 repayable over 6 months at an interest rate of 21.9% p.a. (Fixed). 5 monthly payments of £211.81 and last payment of £210.37. Total amount payable of £1,269.42. Total charge for credit £69.42. Minimum and maximum purchase amount £250 - £10,000. Lender: Klarna Financial Services UK Limited (nr 14290857). T&Cs and late fees apply

PriceRunner
  • Black Friday 2026
  • 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
Images on this website may be AI-generated.