Does what it has to do!

I use this in my rack case. I have taped it to the inside of my 19inch rack case with some midi inputs attached to it from the front of my rack. This way I can use multiple keyboard via midi, into this merger, and then into my interface with only 1 midi-in port.

It works perfectly, hasn't even failed me once. The ports are sturdy, so the cables won't fall out. It is really useful that there are 2 midi outputs, as one is permanently attached to my interface, and the other one can be used if i'd have to link the midi-signals to someone else on stage.