Summary: Well built, seems very robust. I like that all I/Os are in the back (unlike the 2x2). It does what it's supposed to do and hopefully it will do it for years... And it looks good. I've always wandered how could anyone say anything negative about MIDI interface until i used the M-Audio Fast Track Pro...what a piece of %$#* !
Excerpt: it is a midi router. it doesn't rout anything. if you hook it up to a basic sequence it will fail. you can't play a simple melody on a keyboard without overloading it. it is a worthless piece of trash and i too, like the other reviewer of the other model of m-audio midisport 4x4 feel ripped off.
Excerpt: The MIDISPORT can be purchased in the 2 in 2 out versions too. This is the 4 in 4 out version, it is small and compact. It can not be racked, but it will not take up much space on your desktop because it is not very good. It is also made well and won’t break easily, I have knocked mine off my desktop about 4 times, and my floor is made out of wood and it still didn’t break or crack. I take this MIDI device with me everywhere so I can also have all of my gear ready to go.