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
SiparioX - Advanced MIDI Router
Conductive Labs MRCC MIDI Router Control Center - Perfect Circuit
Edirol (Roland) UM-880 midi hub router merger patchbay with USB | Reverb