Fliptzy

I've had this build since early 2016 pretty sure all my warranties have run out. It didn't necessariy just "fall off". I believe it was due to the force applied to the back panel.

Thank you

I had an unfortunate incident where I knocked something into the side panel of my desktop. The side panel broke in half, and now my PC doesn't output a signal or anything. I looked inside my case and at the bottom was a little black plastic cylinder with two holes on the bottom. One of the pins that the cylinder connects to was bent a little bit. What is it? And if possible how easy would it be to fix? I'm planning to go by a local computer repair place this Monday if it's not something that can be fixed from home. On the image it's the black cylinder piece above "REV. 1.02"