u/Substantial-Ask-4237

Hello, I got this pre-built pc about 3 years ago. Please be patient as I don’t know all the vocabulary. The bottom fan started humming, and a friend told me just to tap it to solve the immediate problem. I think it’s about time I replace this fan, but after looking, the tapping has scratched or rubbed away the model number. If anyone could help me identify this piece so I can order and replace it, I’d greatly appreciate it.