Amazon.com: CME U6MIDI Pro - MIDI interface with router and filter - plug-and-play USB MIDI for computer - 3-in-3-out MIDI with Merge. Split, Thru : Musical Instruments
MRCC 880 MIDI Router and USB MIDI Interface
Advanced MIDI Routing - Attack Magazine
FuturTone-#DigMyRig Top Ten -
MRCC
Conductive Labs MRCC, All-In-One MIDI Router Control Center Is About To Be Released