Amazon.com: LiNKFOR USB to SPDIF Coaxial RCA and 3.5mm Headphone Jack Converter USB DAC Optical Audio Adapter USB DAC PCM for Windows Mac PS4 PS3 : Electronics
iFi releases the iLINK USB-to-SPDIF converter
Peachtree Audio X1 Asynchronous USB to SPDIF Converter - Black - weboptimizers testing
USB Sound Card Audio Adapter w/ SPDIF - USB Audio Adapters | StarTech.com
Micro USB TO SPDIF Converter Coaxial/Optical HA info PCM/AC3/DTS Support Source Output Hi Fi Amplifier| | - AliExpress
Spdif Coaxial Usb Audio Interface | Usb Coaxial Digital Interface - Audio U2 Mini - Aliexpress