Wanna see something that doesn't look weird, but turns out to be pretty weird?

So it turns out it's a USB adapter.
That's... pretty boring. There were a lot of PCI USB adapters, because right when USB was first taking off, computers either didn't have USB or only had one or two USB ports.

But wait, why is it using USB-B?

Looking at the board, it's pretty simple. It's a single big chip, a small chip, and some support circuitry.

Nothing on the back, either.
And there was no manual or drivers in the box, so I guess we gotta look up those chips to figure out what the heck this thing does.