Some internals!
I'm using a Traktor Audio2dj as the audio interface, hooked up to the headphone jack on the front as well as the RCA master out. A Roland UM-One will be the MIDI connectivity to the computer.
The sooty looking thing is an old usb hub I decided to strip of its housing. Note to self: don't use a lighter on 40 year old shrink-wrap unless you want it to have a 'survived a domestic fire' type of look 😅