moobody UM4X4 USB MIDI Interface 4 IN /4 Out 64 MIDI Channels 4i/4o + Merge 2i4o MIDI Box 4X4

4 MIDI inputs and 4 MIDI outputs (64 MIDI channels). Merge function 2 ins-> 4 outs included. Perfect MIDI timing. High-speed connection to USB-equipped PC or computers. USB-powered, required no external power supply.