Amazon.com: ABLEWE USB C to Ethernet Adapter, 4-in-1 RJ45 to USB-C/Thunderbolt 3 to Gigabit Ethernet LAN Network Adapter for MacBook Pro/Air 2021/2020/2019, iPad Pro 2021, Chromebook, XPS, Surface Book 3/2/Go : Electronics
1 To 2/3/4 Port 1000 Mbps RJ45 Ethernet Splitter Adapter Gigabit LAN N – SK I.T. Solutions
Was told it's not possible to have multiple Ethernet/Coax connections by the technician. Am skeptical as home was built in the last 10 years, has ethernet and coax ports in every room,
Ethernet Splitter, RJ45 1 Male to 4 x Female LAN Ethernet Splitter Adapter Cable Suitable Super Cat5,Cat5e,Cat6,Cat7 LAN Adapter - AliExpress