Sidestepping GPU ban, Chinese factories dismantle and transform Nvidia RTX 4090 gaming cards into AI accelerators
www.tomshardware.com
Thousands of GeForce RTX 4090 transformed into AI accelerators.

This is the reason why you can’t find ones in your local best buy. They are paying premium for it. But it indeed is very helpful, if I can get my hand on a few for my build.