Can you buy an APU?

Excuse me, I'm a bit confused about something. I've been hearing a lot about APUs lately, and I'm wondering if it's possible to actually purchase one. Is it something that's widely available on the market, or is it more of a specialized product? I'm interested in exploring the possibilities of using an APU for my cryptocurrency mining operations, so I'd really appreciate any information you can provide. Thank you in advance for your help.