SOUTHSKY Audio Converter, Stereo Analog to Digital Converter Adapter, 3.5mm Aux Jack R/L 2 RCA Cinch to SPDIF,Toslink, Optical,Coaxial Converter: Amazon.com: Industrial & Scientific
Oehlbach »AD Transformer - Stereo Audio Signalwandler Analog zu Digital Konverter (RCA Cinch auf Koaxial Cinch SPDIF Toslink - 24bit 96 kHz) Vollmetall« Audio-Adapter