cat5 - How to get two separated connections on one cable? - Super User
Product | StarTech.com 2-to-1 RJ45 10/100 Mbps Splitter/Combiner - One adapter required at each end of the connection - network splitter
Ethernet physical layer - Wikipedia
RJ45 Ethernet Cable Splitter Network Adapter,Ethernet Splitter 1 to 2 Cable Adapter Suitable Super Cat5, Cat5e, Cat6, Cat7 LAN Ethernet Socket Connector Adapter lan Splitter (1 to 2 cable): Amazon.co.uk: Computers &
Wuedozue RJ45 Network Splitter Adapter, 1 to 2 Dual Female USB to RJ45 Port with USB Power Cable LAN Interface Ethernet Socket Connector 8P8C Extender Plug Go Online Simultaneously for Cat6, Cat7 :
Ethernet Network Cable Splitter Adapter for 2-Devices Over 1-Cable 100Mbps | Connectec.uk