RME Digiface USB USB Digital Audio Interface with 4 Optical Inputs/Outputs and Bus Power, 32-in/32-out, 24-bit/192kHz : Musical Instruments - Amazon.com
Digiface USB / 12Mic Product Bundle - rme-usa.com
Digiface USB - RME Audio Interfaces | Format Converters | Preamps | Network Audio & MADI Solutions