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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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PSU Units HP Alienware Aurora Power Supply 1000W

HP Alienware Aurora Power Supply 1000W

$299.99
Or 12 payments of $26.93/mo.*
1store

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.

*Pay in 4: A higher initial payment may be required. CA resident loans made or arranged pursuant to a California Financing Law license. NMLS #1353190. One-time card: One Time Card bi-weekly payments with a service fee between $1.29–$5.99, issued by WebBank. For example: a $248 purchase with a $62 down payment and a $4.99 service fee results in a 35.68% APR, followed by three additional biweekly payments of $62 (total repayment: $252.99). Subject to credit approval; minimum 25% down payment required. Financing: A $1,000 purchase might cost $173.53 per month over 6 months at 13.99% APR. Rate ranges from 0.00%-35.99% APR based on creditworthiness, term length, and subject to credit approval, resulting in, for example, 3 equal monthly payments of $333.33 at 0.00% APR to $353.52 at 35.99% APR per $1,000 borrowed. Minimum purchase amount and down payment may be required. Estimation of monthly payment excludes potential tax and shipping costs. Monthly financing through Klarna issued by WebBank. All loans subject to credit approval. See terms.

Monthly financing through Klarna and One-time card bi-weekly payments with a service fee to shop anywhere in the Klarna App issued by WebBank. Other CA resident loans at select merchants made or arranged pursuant to a California Financing Law license. Copyright © 2005-2026 Klarna Inc. NMLS #1353190, 800 N. High Street Columbus, OH 43215. VT Consumers: For WebBank Loan Products (One-Time Cards, Financing, Klarna Card): THIS IS A LOAN SOLICITATION ONLY. KLARNA INC. IS NOT THE LENDER. INFORMATION RECEIVED WILL BE SHARED WITH ONE OR MORE THIRD PARTIES IN CONNECTION WITH YOUR LOAN INQUIRY. THE LENDER MAY NOT BE SUBJECT TO ALL VERMONT LENDING LAWS. THE LENDER MAY BE SUBJECT TO FEDERAL LENDING LAWS.