The Power Supply Unit (PSU) is a critical component of a computer system, responsible for providing power to all hardware components. Knowing the wattage of your PSU is essential to ensure that it can handle the power requirements of your system, especially when upgrading or adding new hardware components. In this report, we will guide you on how to check the PSU wattage in Windows 11.

Ignore “Peak” or “Surge” wattage — always look for “Continuous” or “Max Continuous Power.”

The PSU itself has no data cable sending its label information to the motherboard. It’s a passive component — it provides power, not data. So, no amount of software can read its sticker.