Cable Matters USB C Multiport Adapter (USB C Hub DisplayPort 1.4), 2X USB 2.0, 480Mbps Ethernet, and 100W Charging in Black – Thunderbolt 4 / USB4 / Thunderbolt 3 Port Compatible with MacBook

A pair of complete functional modules, no need to set.
Connect the RJ45 port of the transmitter and receiver with CAT-5E/6 network cable.
CAT-5e/6 cable can replace HDMI cable for long-distance transmission.
The network cable complies with IEEE-568B standard. Using CAT-6 cable, the transmission distance can reach 30 meters.
The product is compact and convenient.
The transmitter and receiver are used in pairs, no need to set up, no external power supply.