M4U XL - a compact USB 2.0 MIDI interface with 4 inputs, 4 outputs, perfectly optimized for usage with Windows Vista and Mac OS X.

M4U XL can be used directly in all current music applications, not only under Windows Vista, Windows 7 (32-bit / 64-bit) and Mac OS X but also under Windows XP - even without any driver installation!

The compact 1/3 rack size box, USB bus power support and Plug-n-Play installation make M4U XL truly easy to use and easy to carry everywhere you go. M4U XL simply works perfect in any studio environment with its 64 input MIDI channels and 64 output MIDI channels.