MIDI-USB INTERFACE 128 channel MIDI interface 8 MIDI in 8 MIDI outs SMPTE code Connectable via USB port for PC/MAC Expansion - MOTU MIDI interfaces grow with you. Expanding them is simple. Add additional MIDI ports by connecting new MOTU MIDI interfaces. Compatibility - Work with your favorite software seamlessly. Drivers are included for Mac OS9 and Mac OS X and also for Windows Me/2000/XP. High speed USB connection. USB-Powered - Powered from the USB port All MOTU interfaces make full use of the high-speed characteristics of USB ports, achieving sub-millisecond timing accuracy and perfect synchronization of MIDI events. Also with useful hot-pluggable features