MINDBURNER super easy MIDI tester / indicator
What does it do?
Green LED shows source device is capable of supplying MIDI current.
A really neat way to see if your MIDI interface can support 'self powered' devices such as my 3 & 4 way. If this LED doesn't light then it won't supply power.
Amber LED shows MIDI activity
Probably not worth ordering on it's own but why not add one to you main order.