General
While a lot of gear is now fitted with a USB port before jumping into-the-box, there are plenty of tweakers out there with a wall of synths and modules that they just can say goodbye to. Or maybe you just have a fully functioning synth that happened to be built in the '80s when old-school MIDI was still a big deal. In any case, there are plenty of problems that can be solved by a humble USB-MIDI interface like this here Nektar MIDIFLEX 4. This solid chunk of a USB-MIDI interface is able to withstand the rigours of the stage and the wild side of touring life, and provides a no-nonsense, one shot solution to your MIDI-based woes. Four MIDI ports are fitted, each of which is able to operate as either an input or output as needed, and since this is a Nektar interface, just as they would with one of their MIDI controllers, a copy of Bitwig 8-Track has been thrown in for your convenience.