Monoprice RJR-2 Multizone RJ45 to RCA Converter - Monoprice.com
Stereo DC3.5mm Stereo and RCA Red White Audio Signal Balun Over Cat5/6 Cable;RJ45 Female to DC3.5mm &2*RCA audio cable - AliExpress
RCA Stereo Audio Over Ethernet Adapter - Long Distance Audio Extension Balun Adapter
Amazon.com: Analog Audio Extender RCA 3.5mm Stereo Over Ethernet Single Cat5e/6/7 Cable up to 1475 Ft (450m) Converter Adapter Support PCM Stereo POC(Power on Cat) : Electronics
Amazon.com: Analog Audio Extender RCA 3.5mm Stereo Over Ethernet Single Cat5e/6/7 Cable up to 1475 Ft (450m) Converter Adapter Support PCM Stereo POC(Power on Cat) : Electronics
RJ45 Female to DC 3.5mm Male / RT45 to 2 RCA Male With Extender Network Extension Audio Cable 0.3 Meters - AliExpress
Amazon.com: LINESO 2Pack Stereo RCA to Stereo RCA Audio Extender Over Cat5 (2X RCA to RJ45 Female) : Electronics
Amazon.com: Parts Express RCA Audio Set L/R Stereo Extender Over Ethernet Cable (up to 250 ft.) : Electronics
Amazon.com: LINESO 2Pack Stereo RCA to Stereo RCA Audio Extender Over Cat5 (2X RCA to RJ45 Female) : Electronics
RCA – RJ45 network | Cables, adapters and converters
Amazon.com: Analog Audio Extender RCA 3.5mm Stereo Over Ethernet Single Cat5e/6/7 Cable up to 1475 Ft (450m) Converter Adapter Support PCM Stereo POC(Power on Cat) : Electronics