Delock Products 84419 Delock Adapter Audio 3,5 mm Cinch male - angled > Toslink female
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
RCA Stereo Audio to Digital Coax and Optical Audio Converter | ShowMeCables.com