This is the upgraded version TH3P4G3 , the Thunderbolt-compatible GPU Dock. If your laptop have Thunderbolt-compatible 3 or Thunderbolt-compatible 4 interface, you can use it to connect a external graphic so that to play game,video editing,image processing and so on.
It comes with SFX and ATX power holder, so that you can use it more convenient.

Note:

It does not support the Macbook with M1 chip.
When you use Mac OS for Macbook, it only support AMD version graphic card. And when you use Windows system for Macbook, it only support Nvidia version graphic card.