Choosing an External MIDI Interface
There are a wide variety of MIDI interfaces available. When you select a MIDI interface,
consider the following:
Â You need a MIDI interface that is compatible with Mac OS X.
Â Most interfaces connect to your computer via the USB port, although some PCI and
FireWire audio interfaces include MIDI ports.
Â You should purchase a MIDI interface that supports the number of control surfaces
you need, plus any additional MIDI equipment you may want to connect to