3 in 1 Function, combined with USB MIDI, Merge and thru functions. 4 Inputs, 4 Outputs MIDI interface (64 MIDI Channels).
MIDI Merge Function for mixing data of the inputs1 and 2, 4 output.
Perfect MIDI timing, USB powered (no external power supply requires).
High-speed connection to USB equipped PC or Mac computers.
True Plug and Play & Wide compatible, users do not need to install drivers.

e SW: USB and MIDI THRU e switch button.
This button lets you choose one of the 5 operating es of the interface ( One USB e and 4 MIDI Thru es)
With this MIDI Box, you can obtain perfect midi timing and performance at an extremely affordable price.
Compatible with Windows XP, Vista and Mac OSX or better
MIDI in and MIDI out activity indicators for each port USB powered (no external power supply requires)
Material:metal
colour:black

Package Contents:
1 x MIDI box
1 x cable
1 x English manualOnly the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.