The 5-pin DIN keyboard connector used with the first IBM PC (1981) and second-generation IBM AT (1984). It was subsequently replaced with the smaller 6-pin Mini-DIN connector on the IBM PS/2 in 1987.

So, let’s answer this question comprehensively: how do you connect a MIDI keyboard to your audio interface? 1. Plug it into your computer In short – you don’t. For some of you, at least.