networking - Will an Ethernet splitter work? - Super User

I have a room with only one Ethernet cable going there, but I would like to connect two devices on it. Is an Ethernet splitter suitable for that? I am talking about something like this: In theory it

networking - Does this home-network work using an Ethernet Splitter? - Super User

networking - Will an Ethernet splitter work? - Super User

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RJ45 Hub Fiber port DIN Rail Type industrial Network switch 10/100Mbps 1F4T-Port fast Ethernet switch Internet Splitter box - AliExpress

RJ45 Ethernet Splitter 1 to 2 Out, 1000Mbps Network Splitter with USB Power Cable, Gigabit LAN Internet Splitter Connector for Cat 5/5e/6/7/8, Support Two Devices Working Simultaneously