
If you search for "Media Converters", "Baluns", "Audio Over Cat5", "Audio Over Cat6" you will find MANY cheap solutions on this site. These little things have an RJ-45 connector on one end and two short RCA connectors on the other. You are not working. You will hear the rumble of the earth, or you will hear no sound at all. But these Sewell baluns are the real deal: a transformer-style balanced audio balun. As a test I routed the connection via 5 patch panel connections and they worked perfectly. They are in no way inferior to similar devices from television and recording studios. You get what you pay for.

High Gain Wireless Network Adapter - TP-Link Nano USB Wifi Dongle with 150Mbps Speed for PC Desktops and Laptops. Compatible with Win10/8.1/8/7/XP Linux 2.6.18-4.4.3, Mac OS 10.9-10.15 (TL-WN722N)
46 Review

πΆ Enhance and Expand Your Network with TP-Link AV600 Powerline WiFi Extender and WiFi Booster (TL-WPA4220 KIT)
44 Review

Enhance Internet Speed with TP-Link AC1200 Wireless Dual Band USB Adapter (Archer T4U V1)
40 Review

TP Link TL WN823N 300Mbps Wireless Adaptor
55 Review

π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review

π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review

π CERRXIAN RS232 to Ethernet Serial Device Server - TCP/IP Converter with 1Port DB9 RS232 Serial to Ethernet Connectivity
3 Review

π Juiced Systems Silver BizHUB USB-C Multiport Gigabit HDMI Hub with 3 USB 3.0 Ports, Gigabit Ethernet, 4K HDMI, SD/Micro SD, and USB-C Power Delivery
11 Review