SPDIF

Syba USB 2.0 24 bit 96KHz DAC and Headphone Amplifier with 3 Current EQ Bass Increase 3.5mm and S/PDIF Home windows/MacOS/Linux/Android PS3 PS4

Portable Audio & Video

Digital to Analog Audio Converter for Coaxial and Optical Devices

Portable Audio & Video

HDMI 2.0 Audio Extractor: 4K/60Hz Output Converter with Multiple Audio Options

Headphones

Soundavo HP-DAC1 Digital to Analog Converter / Headphone Preamp DAC with S/PDIF, Line, USB Enter for PC/Laptop computer

Headphones

192kHz Digital to Analog Audio Converter with Remote Control - Coaxial Toslink Optical SPDIF to Analog Stereo RCA Adapter

Portable Audio & Video

Analog Audio Converter with Toslink and 3.5mm Output

Portable Audio & Video

Digital Coaxial to Analog Audio Converter for SPDIF Stereo Signals

Portable Audio & Video