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 …

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 …

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.

Jul 28, 2023 · The power supply unit is the piece of hardware that converts the power provided from the outlet into usable power for the many parts inside the computer case. It converts the …

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.

A PSU distributes the converted power to various parts of your computer, including the motherboard, CPU, GPU, storage drives, and basically everything else. It ensures that each …

Sep 17, 2025 · A Power Supply Unit (PSU) is a crucial component of a computer system that converts electrical power from an external power source into usable power for the internal …

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) …

Best Buy customers often prefer the following products when searching for Best Power Supply Units. A power supply unit, or PSU, is an essential part of any computer system and is used to …

Nov 14, 2025 · In this definitive guide, we'll demystify the PSU, explore its critical specifications, and show you how to choose the perfect one for your needs. We'll even dive into a specialized …