Amazon.com: TNP RJ45 Ethernet Cable Combiner/Splitter Kit (1 Pair), 2 Male to 1 Female & 1 Male 1 Female to 1 Female POE Data Adapter LAN Ethernet Network Extender Y Splitter Cat5e
RJ - 45 wiring standard
Furuno LAN Cable Assembly 2M 2x RJ45 Connectors 4 Pairs 00116788010 – The Qualified Captain™