Does something like a 1 to 2 Ethernet cable sort of device exists ? Searched earlier on Amazon but it's never clear what their product is used for
A switch would be preferred.. however, there is a workaround. You can buy and pair of Ethernet splitter that will take a normal 8 conductor Ethernet cable and split it into two four conductor cables. The downside is with four conductors you are limited to 100Mbps. I used them back in the day when we needed two ports.
I’d still recommend a switch.