Amazon.com: HDMI Audio Extractor 4K, Hdiwousp HDMI to HDMI Audio Optical Stereo 3.5mm Jack, HDMI Audio Converter with HDMI Cable to Toslink SPDIF AUX Output Support HDCP1.4 3D for PS4/Roku/Bul-Ray : Electronics
High Speed HDMI Cable with Ethernet 28AWG - 15 Feet
Kramer High-Speed HDMI Cable with Ethernet and C-MHMA/MHMA-3 B&H
4K60 HDMI Audio Extractor with scaler and EDID setting
Amazon.com: 3x1 HDMI Switch with Audio Extractor, Proster 3 Port 4K HDMI Switcher HDMI Audio Converter Include PIP IR Remote and 3.5mm Male to 2 RCA Female Stereo Audio Cable : Electronics
HDMI Audio Extractor with TOSLINK, 3.5 mm Stereo 4K | Eaton
Monoprice Blackbird 4K Series HDMI Audio Inserter - Monoprice.com
Insignia™ HDMI Audio Extractor with 4K @ 60Hz / HDR Support Black NS-HZ340 - Best Buy
Ocean Matrix 4K HDMI to HDMI Audio OMX-05HMHM0001 B&H Photo Video
HDMI to RCA Audio and CVBS NTSC, PAL, or S-Video Converter : ID 3537 : $34.95 : Adafruit Industries, Unique & fun DIY electronics and kits