Cubilux USB C to TOSLINK (S/PDIF) Optical AUX Dongle sends the digital audio signal from laptops, computers or gaming console to speaker, home sound system, amplifier or other output components to deliver a more natural sound with rich details, better clarity and superior sonic accuracy.\n[Convert USB Port to SPDIF Transmitter] \u2013 Cubilux S/PDIF Output Adapter lets you transmit the optical audio signal from the USB Type C port of computers to soundbars, home audio system, external DAC or amplifier to enjoy 5.1 surround sound.\n[For Output ONLY] \u2013 This converter cannot be used in the opposite direction, not for receiving SPDIF signals from source devices like DACs/AMPs, not for recording audio.\n[Support 5.1 & Stereo Audio, NOT for 7.1] \u2013 This adapter can output stereo optical signal without any setup or software, and with a media player to decode 5.1 files and proper setting, it can output 5.1 surround sound, but this adapter does NOT support 7.1 surround sound due .