NiceTQ PC USB to MIDI keyboard Interface Converter Cable Cord For Alesis iO2 Express / Trigger IO USB Audio Recording Interface 1 in and 1 out MIDI interface Length: 6FT Compatible with Alesis iO2 Express / Trigger IO USB Audio Recording Interface Supports Windows XP, Vista and Mac OS X operating systems USB Powered and Class Compliant for true plug & play.Just connect to a computer USB socket for automatic installation of the driver.