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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 Corsair 1000W HX1000i V2
Corsair 1000W HX1000i V2
£173.77
6 stores
PSU Units Silverstone RM400
-17%
Silverstone RM400
£192.13
£230.56
5 stores
PSU Units Asrock PRO-750B 750W ATX Power Supply Unit
-12%
Asrock PRO-750B 750W ATX Power Supply Unit
£46.55
£52.99
4 stores
PSU Units Be Quiet! System Power 11 550W 80PLUS Bronze ATX 3.1
Be Quiet! System Power 11 550W 80PLUS Bronze ATX 3.1
Bronze 80 PLUS Certification
£43.28
9+ stores
PSU Units Asrock 850W Steel Legend 850GW Modular 80 Plus Gold PSU
-17%
Asrock 850W Steel Legend 850GW Modular 80 Plus Gold PSU
£99.02
£118.82
5 stores
PSU Units Cooler Master X Silent Edge Platinum 1100 230V Power Supply Unit 1100 W 24-Pin ATX ATX Black
-18%
Cooler Master X Silent Edge Platinum 1100 230V Power Supply Unit 1100 W 24-Pin ATX ATX Black
Platinum 80 PLUS Certification
£176.05
£213.59
5 stores
PSU Units Vida Lite 650W ATX PSU Fluid Fan
Trending
Vida Lite 650W ATX PSU Fluid Fan
£19.24
5 stores
PSU Units CiT 500W PSU 80+ Bronze ATX Power Supply
Trending
CiT 500W PSU 80+ Bronze ATX Power Supply
Bronze 80 PLUS Certification
£25.99
5 stores
Gigabyte P550SS Power Supply Unit 550 W 20+4 Pin ATX
-17%
Gigabyte P550SS Power Supply Unit 550 W 20+4 Pin ATX
£37.53
£44.99
6 stores
Gigabyte UD750GM PG5 750W Power Supply
Gigabyte UD750GM PG5 750W Power Supply
£76.99
4 stores
Gamemax GX-850 Pro 850W Black
Gamemax GX-850 Pro 850W Black
Gold 80 PLUS Certification
£79.99
5 stores
Phanteks Revolt SFX 80 Plus 850 Watt
Phanteks Revolt SFX 80 Plus 850 Watt
Platinum 80 PLUS Certification
£153.90
5 stores
MSI MPG A1000G PCIE5 1000W
MSI MPG A1000G PCIE5 1000W
Gold 80 PLUS Certification
£115.32
9 stores
Silverstone TFX Series SST-TX300 300W
-15%
Silverstone TFX Series SST-TX300 300W
Bronze 80 PLUS Certification
£51.02
£59.99
4 stores
MSI MAG A1200PLS PCIe 5.1 80 Plus Platinum ATX Power Supply
MSI MAG A1200PLS PCIe 5.1 80 Plus Platinum ATX Power Supply
Platinum 80 PLUS Certification
£146.25
8 stores
MSI MAG A1000PLS PCIe 5.1 80 Plus Platinum ATX Power Supply
MSI MAG A1000PLS PCIe 5.1 80 Plus Platinum ATX Power Supply
Platinum, Gold 80 PLUS Certification
£122.41
7 stores
ASUS ROG Strix EQ 1200W Platinum Power Supply
ASUS ROG Strix EQ 1200W Platinum Power Supply
Platinum 80 PLUS Certification
£199.37
7 stores
ASUS ROG-THOR-1200P3-GAMING-E Power Supply Unit 1200 W
-17%
ASUS ROG-THOR-1200P3-GAMING-E Power Supply Unit 1200 W
£328.13
£393.76
6 stores
Cooler Master GX II Gold 750 ATX 3.1
-15%
Cooler Master GX II Gold 750 ATX 3.1
£67.99
£79.99
8 stores
MSI Mag A650GLS PCIE5 Power Supply Unit
-18%
MSI Mag A650GLS PCIE5 Power Supply Unit
£74.14
£89.90
6 stores
Lian Li RS 1000W 80 Plus Gold Modular PSU
Lian Li RS 1000W 80 Plus Gold Modular PSU
£109.35
6 stores
Phanteks AMP GH 1000W V2 Platinum ATX Power Supply Modular
Phanteks AMP GH 1000W V2 Platinum ATX Power Supply Modular
£113.32
6 stores
FSP Vita GD 850W Power Supply Unit
FSP Vita GD 850W Power Supply Unit
£78.92
7 stores
Lian Li SX Platinum 1000W Fully Modular
Lian Li SX Platinum 1000W Fully Modular
£114.21
7 stores
Antec Signature 2200 Power Supply Unit
-17%
Antec Signature 2200 Power Supply Unit
£360.30
£432.36
6 stores
Be Quiet! Dark Power 14 850 W Power Supply Unit
-15%
Be Quiet! Dark Power 14 850 W Power Supply Unit
£145.50
£170.95
7 stores
ASUS TUF-GAMING-650B-EVO Power Supply Unit
-10%
ASUS TUF-GAMING-650B-EVO Power Supply Unit
£57.90
£64.60
7 stores
Be Quiet! Power Zone 2 1200 Watt Fully Modular 80+ Platinum ATX
-13%
Be Quiet! Power Zone 2 1200 Watt Fully Modular 80+ Platinum ATX
£142.73
£164.99
9 stores
Lian Li 850W Sx Platinum Single Rail
Lian Li 850W Sx Platinum Single Rail
£97.65
6 stores
Be Quiet! 300w Tfx Power 3 80 Plus Gold Wired Psu Dual Rail
Be Quiet! 300w Tfx Power 3 80 Plus Gold Wired Psu Dual Rail
£52.73
6 stores
NZXT 850W ATX Fully Modular Power Supply
-28%
NZXT 850W ATX Fully Modular Power Supply
£65.21
£89.99
6 stores
NZXT 750W ATX Fully Modular Power Supply
-31%
NZXT 750W ATX Fully Modular Power Supply
£52.09
£75.08
6 stores
Lian Li Edge 850w Platinum Power Supply
Lian Li Edge 850w Platinum Power Supply
£110.16
6 stores
Lian Li RS 1000W Fully Modular 80 Plus Gold ATX Power Supply
Lian Li RS 1000W Fully Modular 80 Plus Gold ATX Power Supply
£113.37
7 stores
Lian Li RS 1200W Fully Modular 80 Power Supply
Lian Li RS 1200W Fully Modular 80 Power Supply
£125.52
7 stores
Lian Li RS 1000W Fully Modular 80 Power Supply
Lian Li RS 1000W Fully Modular 80 Power Supply
£106.57
7 stores
Lian Li RS 1000W Fully Modular 80 Power Supply
Lian Li RS 1000W Fully Modular 80 Power Supply
£113.37
7 stores
Lian Li SP Platinum 1000W Modular SFX
-14%
Lian Li SP Platinum 1000W Modular SFX
£137.67
£159.95
6 stores
Lian Li SX Platinum 1000W Fully Modular 80+ ATX 3.1 White
Lian Li SX Platinum 1000W Fully Modular 80+ ATX 3.1 White
£114.21
6 stores
Asrock 1200W Steel Legend SL-1200G PSU
Asrock 1200W Steel Legend SL-1200G PSU
£148.64
6 stores
Lian Li RB Series 550W 80 Plus Bronze PSU
Lian Li RB Series 550W 80 Plus Bronze PSU
£45.75
6 stores
Antec CSK750DC White PSU 80 Bronze Fully Wired
-14%
Antec CSK750DC White PSU 80 Bronze Fully Wired
£50.99
£59.35
6 stores
ASUS 2200W Platinum Modular 80 Plus Platinum
ASUS 2200W Platinum Modular 80 Plus Platinum
£490.56
9 stores
Antec CSK550DC 550W 80PLUS Bronze ATX Power Supply
-17%
Antec CSK550DC 550W 80PLUS Bronze ATX Power Supply
£38.75
£46.50
6 stores
Cooler Master 550W MWE Gold V3 ATX3.1
Cooler Master 550W MWE Gold V3 ATX3.1
Gold 80 PLUS Certification
£49.64
7 stores
Lian Li EDGE GOLD 750 Watt PSU
Lian Li EDGE GOLD 750 Watt PSU
Gold 80 PLUS Certification
£81.38
6 stores
Antec CSK750DC 750W 80PLUS Bronze ATX PCIe 5.1
-17%
Antec CSK750DC 750W 80PLUS Bronze ATX PCIe 5.1
£48.37
£58.04
6 stores
Lian Li EDGE GOLD 850 Watt PCIE5.1 PCIE5.1
Trending
Lian Li EDGE GOLD 850 Watt PCIE5.1 PCIE5.1
Gold 80 PLUS Certification
£86.26
6 stores
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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