PSU Units

Looking for the right PSU unit for your computer setup? Klarna is here to guide you. We list a wide range of PSU units from top brands and retailers, ensuring you find the best fit for your needs. Our category filters make it easy to narrow down your choices based on power output, efficiency rating, and price range. Compare different models side-by-side to see which PSU unit suits your system best. User reviews add another layer of insight, helping you make the right choice without any hassle. Whether you're building a new PC or upgrading an existing one, Klarna makes the process simple and straightforward. Begin here to find the ideal PSU unit that powers your setup efficiently and reliably.

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1000+ products

PSU Units Corsair RMX Series RM1000x Cybenetics Gold Fully Modular ATX Power Supply
-15%
Corsair RMX Series RM1000x Cybenetics Gold Fully Modular ATX Power Supply
$166.24
$194.49
5 stores
PSU Units MSI Inspire GeForce RTX 5080 16GB GDDR7 PCI Express 5.0 Graphics Card
MSI Inspire GeForce RTX 5080 16GB GDDR7 PCI Express 5.0 Graphics Card
Gold 80 PLUS Certification
$73
8 stores
PSU Units MSI MAG A650GL 600W
MSI MAG A650GL 600W
Gold 80 PLUS Certification
$75.99
7 stores
PSU Units MSI MAG A650GLS PCIE5 650W ATX 3.1 Gaming Power Supply
MSI MAG A650GLS PCIE5 650W ATX 3.1 Gaming Power Supply
$79.99
8 stores
PSU Units MSI MAG A750GL PCIE 5.0, 80
MSI MAG A750GL PCIE 5.0, 80
Gold 80 PLUS Certification
$50
7 stores
PSU Units MSI MAG A850GLS PCIE5 850W ATX 3.1 PCIe 5.1 Gaming Power Supply
MSI MAG A850GLS PCIE5 850W ATX 3.1 PCIe 5.1 Gaming Power Supply
$109.99
5 stores
PSU Units Thermaltake Toughpower GT 1000W ATX 3.1 Power Supply
Thermaltake Toughpower GT 1000W ATX 3.1 Power Supply
$108.99
5 stores
PSU Units MSI MPG A850GS PCIe5 80+ Gold Full Modular Gaming PSU 12V 2x6 Cable
MSI MPG A850GS PCIe5 80+ Gold Full Modular Gaming PSU 12V 2x6 Cable
$87.99
6 stores
MSI MAG A850GL PCIE5 850W
MSI MAG A850GL PCIE5 850W
Gold 80 PLUS Certification
$89.99
4 stores
MSI Mag A1000GLS PCIe 5.1 Ready Full Modular Compact Gaming Power Supply
MSI Mag A1000GLS PCIe 5.1 Ready Full Modular Compact Gaming Power Supply
$129.99
6 stores
Thermaltake Toughpower GT 1200W ATX 3.1 Power Supply
Thermaltake Toughpower GT 1200W ATX 3.1 Power Supply
$147.27
7 stores
CyberPower CP500PFCRM1U UPS Systems
CyberPower CP500PFCRM1U UPS Systems
$269.95
7 stores
MSI MEG Ai1600T PCIe5 Power Supply
MSI MEG Ai1600T PCIe5 Power Supply
$659
6 stores
MSI MAG 1000W Power Supply
MSI MAG 1000W Power Supply
$144.87
6 stores
Corsair RMe Series RM750e 80 Plus Gold Power Supply
Corsair RMe Series RM750e 80 Plus Gold Power Supply
$89.99
5 stores
Corsair RMe Series RM850e 850 W Power Supply
Corsair RMe Series RM850e 850 W Power Supply
Gold 80 PLUS Certification
$109.99
5 stores
Thermaltake ToughPower GT 750W
Thermaltake ToughPower GT 750W
Gold 80 PLUS Certification
$84.99
7 stores
Thermaltake Toughpower GT 850W Power Supply
Thermaltake Toughpower GT 850W Power Supply
$79.99
6 stores
Corsair RMx Series RM750x ATX Power Supply 750 Watts
Corsair RMx Series RM750x ATX Power Supply 750 Watts
Gold 80 PLUS Certification
$114.99
6 stores
MSI mag 1250w power supply
-16%
MSI mag 1250w power supply
Gold 80 PLUS Certification
$135
$161.49
7 stores
Corsair SF1000 (2024) 1000W
Corsair SF1000 (2024) 1000W
Platinum 80 PLUS Certification
$239.97
6 stores
Thermaltake Toughpower SFX 850W ATX 3.1 Platinum
Thermaltake Toughpower SFX 850W ATX 3.1 Platinum
$144.99
6 stores
MSI MAG A650BN 650W PLUS
MSI MAG A650BN 650W PLUS
Bronze 80 PLUS Certification
$55
5 stores
Thermaltake Toughpower GF A3 Snow Edition 80+
-24%
Thermaltake Toughpower GF A3 Snow Edition 80+
$128.99
$169.99
6 stores
Thermaltake Toughpower GF A3 850W 80+ Gold PCIe Gen 5 Power Supply
-15%
Thermaltake Toughpower GF A3 850W 80+ Gold PCIe Gen 5 Power Supply
Gold 80 PLUS Certification
$109.99
$129
6 stores
Cisco Power Supply 120V Ac 230V 54V Dc 16.5A
Cisco Power Supply 120V Ac 230V 54V Dc 16.5A
$515
6 stores
ASUS ROG Thor 1200W Platinum III PSU
ASUS ROG Thor 1200W Platinum III PSU
$448.99
3 stores
MSI Mpg A1250gs 1250w Psu Gaming Power Supply
-11%
MSI Mpg A1250gs 1250w Psu Gaming Power Supply
$159.99
$179.99
3 stores
Montech Century II 850W 80 Plus Gold Cybenetics Platinum Modular PSU
Trending
Montech Century II 850W 80 Plus Gold Cybenetics Platinum Modular PSU
$79.90
2 stores
Be Quiet! Pure Power 12 850W Power Supply
Trending
Be Quiet! Pure Power 12 850W Power Supply
Gold 80 PLUS Certification
$89.90
3 stores
Thermaltake Smart BX3 Pro 750W PCIe 5.1 12V
Thermaltake Smart BX3 Pro 750W PCIe 5.1 12V
Bronze 80 PLUS Certification
$79.99
4 stores
MSI PCIE 5 Gaming Power Supply 1000W
-13%
MSI PCIE 5 Gaming Power Supply 1000W
$102.20
$117.99
4 stores
HP Hpe Aruba X372 Power Supply 1600 Watt
HP Hpe Aruba X372 Power Supply 1600 Watt
$2,056.97
4 stores
MSI MAG A1000PLS PCIE5 1000W Power Supply
MSI MAG A1000PLS PCIE5 1000W Power Supply
$159.99
4 stores
Corsair RMx Series RM850x ATX Power Supply
Corsair RMx Series RM850x ATX Power Supply
$139.99
5 stores
MSI MPG Ai1300TS PCIE5 1300W Power Supply
MSI MPG Ai1300TS PCIE5 1300W Power Supply
$363.99
4 stores
Thermaltake Toughpower GF3 850W ATX 3.1 Native PCIe 5.1 Full Modular
Thermaltake Toughpower GF3 850W ATX 3.1 Native PCIe 5.1 Full Modular
$129.99
4 stores
MSI MAG A1200PLS PCIE5 1200W Power Supply
-13%
MSI MAG A1200PLS PCIE5 1200W Power Supply
$209.99
$239.99
4 stores
Thermaltake Toughpower GF3 1000W ATX 3.1 Native PCIe 5.1 Full Modular
Thermaltake Toughpower GF3 1000W ATX 3.1 Native PCIe 5.1 Full Modular
$129.99
4 stores
Lian Li Sp850 V2 Gold 850 Watt Factor Power Supply
Lian Li Sp850 V2 Gold 850 Watt Factor Power Supply
$144
4 stores
MSI PRO A1000PL PCIE5 Power Supply
MSI PRO A1000PL PCIE5 Power Supply
$125.99
4 stores
MSI Mag A650gn Ii 650w Power Supply
MSI Mag A650gn Ii 650w Power Supply
$89.99
4 stores
MSI Mag A650bn Pcie5 Iii Compact Gaming Power Supply
MSI Mag A650bn Pcie5 Iii Compact Gaming Power Supply
$59.99
4 stores
Lian Li SP750G.B 750W SFX Power Supply With 12V-2x6 Cable
Lian Li SP750G.B 750W SFX Power Supply With 12V-2x6 Cable
$124.99
4 stores
Thermaltake Toughpower TF3 1650W ATX 3.1 Native PCIe 5.1 12V-2X6
Thermaltake Toughpower TF3 1650W ATX 3.1 Native PCIe 5.1 12V-2X6
$449.99
4 stores
Havis 120W Power Supply
Havis 120W Power Supply
$209.44
4 stores
MSI Mag A750bn Pcie5 Iii Compact Gaming Power Supply
-10%
MSI Mag A750bn Pcie5 Iii Compact Gaming Power Supply
$59.99
$66.99
4 stores
ASUS ROG Thor 1000W PSU Platinum ATX 3.1
ASUS ROG Thor 1000W PSU Platinum ATX 3.1
$383.99
4 stores
PSU UNITS

FAQ

PSU Units are devices that convert electrical power from an outlet into usable power for your computer's components. They ensure your computer runs efficiently and safely. When choosing a PSU, consider wattage, efficiency ratings like 80 Plus, and the number of connectors to match your system’s needs.

PSU Units should match or exceed the total wattage required by all your computer's components. Calculate the combined power draw of your CPU, GPU, and other parts. We recommend adding a 20% buffer to ensure stability and future upgrades.

PSU Units with 80 Plus certification are more energy-efficient, reducing electricity costs and heat output. Levels range from Bronze to Titanium, with higher levels offering better efficiency. Choosing a certified unit can enhance performance and longevity while being environmentally friendly.

PSU Units: 3 things to consider before buying

When selecting PSU Units, it's crucial to consider the wattage required by your system. Calculate the total power consumption of your components, including the CPU, GPU, and other peripherals. For example, a high-performance gaming PC with a powerful graphics card might need a 750W PSU Unit or more, while a basic office setup could suffice with 450W. Remember, it's better to have a bit more wattage than you need to ensure stability and accommodate future upgrades.

Efficiency is key when choosing PSU Units because it affects both energy consumption and heat generation. Check for an 80 PLUS certification, which indicates higher efficiency levels. The ratings range from 80 PLUS Bronze to Titanium. A Gold-rated PSU Unit is often a good balance between cost and efficiency for most users. This ensures that less energy is wasted as heat, leading to lower electricity bills and a cooler operating environment.

The form factor of PSU Units should match your computer case and motherboard requirements. ATX is the most common form factor, but always double-check compatibility. Additionally, consider modular or semi-modular PSU Units if you value cable management and airflow within your case. Modular designs allow you to use only the cables you need, reducing clutter and improving airflow for better cooling performance.

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Power up your build: Find the right PSU unit

Choosing the right power supply unit (PSU) is essential for any computer build. It ensures your system runs smoothly and efficiently. At Klarna, we help you compare options from different brands and retailers, making it easier to find the right PSU unit for your needs. Use our smart filters to sort by price, brand, and specifications. You can also check user reviews and see price history to make the right decision.

Top PSU brands

Several brands offer reliable and high-performance PSU units. Here are some of the popular choices:

  • Seasonic: Known for its efficient and quiet power supplies, Seasonic offers a range of options for different builds.
  • Corsair: A good choice for gamers and professionals, Corsair provides robust and durable PSU units.
  • Thermaltake: Offers a variety of power supplies with excellent cooling solutions.

PSU form factors

When selecting a PSU, consider the form factor that fits your case:

  • ATX: The most common size, suitable for standard and mid-tower cases.
  • SFX: Smaller and ideal for compact builds or mini-ITX cases.

Efficiency ratings

Efficiency ratings are crucial when choosing a PSU. They indicate how well the unit converts power from the outlet to usable power for your components. Look for units with Gold 80 PLUS Certification or Platinum 80 PLUS Certification. These ratings mean higher efficiency and lower energy waste.

Key features to consider

Different builds have different power needs. Here are some key features to keep in mind:

  • Wattage: Ensure the PSU provides enough power for all your components. Consider future upgrades when deciding on wattage.
  • Modular cables: Modular or semi-modular units offer better cable management, reducing clutter and improving airflow.
  • Cooling: Look for units with efficient cooling solutions, such as quiet fans or fanless designs for silent operation.
  • Protection features: Overvoltage, under-voltage, and short-circuit protection are essential for safeguarding your components.

Shop smarter with Klarna

Navigate your way to the best option using our handy tools. Compare prices, apply smart filters, read user reviews, and explore price history — all in one place. You can also earn cashback from hundreds of stores by shopping directly in the app.

Filter and sort

Looking for something specific? Filter by anything from price and brand to material or color to see only the products relevant to you. Since delivery options and shipping costs can differ between stores, you can easily find your perfect match by filtering these too.

Reviews: See what other users think

Curious about a product's performance? User reviews provide excellent insights into features and durability. Ratings make it easier to determine popularity and satisfaction.

Price history: Find real deals

Want to ensure you're scoring a great deal? Check the price history to see how prices have changed over time. By clicking “Choose store,” you can even dive into the price history of a particular shop.

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