
Power supply unit (computer) - Wikipedia
A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a desktop computer. Modern personal computers universally use switched-mode …
What is Power Supply Unit (PSU)? - GeeksforGeeks
Jul 23, 2025 · Power Supply Units (PSUs), despite their name, transform power rather than providing it to systems. In particular, a power supply regulates the DC output voltage to the precise tolerances …
What Is a Power Supply? - Computer Hope
Dec 2, 2025 · Explore the role of a power supply unit in powering computer components by converting AC into low-voltage DC. Learn about its parts, safety, and buying tips.
Power Supplies: Computer Power, Computer Parts - Best Buy
Your computer’s power supply distributes power to all of the computer components. It converts the alternating current (AC) coming from an outlet to a steady direct current (DC) that serves the …
What Is a PSU? What is an ATX Power Supply? - Lifewire
Jul 28, 2023 · A power supply unit (PSU) converts AC power from the wall into the right kind of power for the individual parts of your computer.
A Complete Guide to PC Power Supplies: ATX, SFX, TFX, & EPS Types
Jul 28, 2025 · Learn about PC power supplies, including ATX, SFX, TFX, and EPS types. Find the right PSU for you, considering efficiency, wattage, and form factors.
What is a PSU (Power Supply Unit)? Explained! - Beebom
Oct 15, 2025 · In this guide, we have explained what is a power supply unit, or PSU, along with its types, power connectors, 80 Plus ratings, and more.
Amazon.com: Computer Power Supplies - Computer Power Supplies ...
Shop a wide selection of Power Supplies at Amazon.com. Free shipping and free returns on eligible items.
Anatomy of a Power Supply Unit (PSU) - TechSpot
Sep 4, 2025 · While power supply units don't make flashy headlines like the latest CPUs or GPUs, they're seriously cool pieces of engineering. So, let's put on our virtual lab coats and dissect the …
What is a PSU: your PC's power system explained - TechRadar
Jun 9, 2023 · PSU stands for Power Supply Unit, and it is the part of a PC responsible for converting the alternating current (AC) power from an electrical outlet into direct current (DC) power that computer...