Unlike your CPU or RAM, you can’t just open a window in Windows to see your PSU specs. You have to do a little digging. Here are the four best ways to check your power supply specifications.

Before we dive into the process, let's quickly discuss why you might want to check your PSU specs:

Whether you are looking to upgrade your graphics card, troubleshooting a random shutdown, or just curious about what’s inside your PC, knowing your power supply unit (PSU) specs is crucial.

Locate the PSU—usually a large metal box at the top or bottom of the case.

The easiest way to find your PSU specs is to check the label on the unit itself. Here's how: