RME MADIface USB 2.0 Audio Interface with 2 x MADI I/O (Optical and Coax), and TotalMix FX Management Software : Amazon.co.uk: Musical Instruments & DJ
MADI Recording Interface – MADI-192 Option Card
RME MADIface USB 128-Channel Bus Powered USB 2.0 MADI Audio Interface | Full Compass Systems
RME MADI the perfect solution for the transmission of multiple audio channels - RME Audio Interfaces | Format Converters | Preamps | Network Audio & MADI Solutions