Mechanism behind the SD Card’s Satisfying click

It takes a surprisingly complicated mechanism to get an SD card to click in and click out of its slot, which somehow fits into this tiny little space. But this 10x scaled up version makes it pretty easy to see. As the card pushes in, this pin slides through this track and locks into this corner. This hook is connected to the sliding slot thingy, and when you push the card in, it follows the guide track inside the base, hooking the card into place.

And you can't put the card in backwards because it gets jammed. When you push the card in again to remove it, the pin slides this way and up the ramp into the original slot. This pushes And you can't put the card in backwards because it gets jammed. When you push the card in again to remove it, the pin slides this way and up the ramp into the original slot. This pushes the hook into this exit guide automatically releasing the card on the way out.