What’s this device for?

Anyone know what this thing is used for? I'm kinda confused about its purpose.

Looks like it’s a tester for ASIC boards. You connect it to the board and run some kind of diagnostic software on your laptop. Could be handy for troubleshooting.

Yeah, I found out it’s called a multifunctional Antminer tester. Basically, it helps figure out errors with your Antminer ASIC, like what’s wrong and stuff.