It has a PS/2 port, but IIRC, most adapters have problems with this 'board (and its cousin, the SGI AT-101). Anyway, the switches are (real) ALPS blacks which are tactile but not clicky. They are fairly noisy, though, as they make a "clacking" sound on the bottom and top out. For $10, it's a good keyboard; in the wider world of keyboards, it's pretty unspectacular. It would make a good 'board to take to work as the noise level is not horrible, and it's cheap enough, that if someone steals it, you won't be out much (if you're worried about that sort of thing).