 The NeoKey socket breakout for mechanical key switches. It has a NeoPixel built into it so that it can underlight your keys. It has sockets so that you can push your mechanical key switch into it without soldering and then you can try different switches out whenever you want. I have these set up as USB HID keys so these are sending shortcuts to my broadcast software which means if I press one we get this current camera view of me in the corner. Two, it switches to a duplicate. Three is that little product web page. Four goes to a little product photo and five clears that layer out entirely. It is the NeoKey socket mechanical key switch breakout.