5040 | DataMax Extreme Ethernet Cat 5e – 26 AWG, 2 pair, shielded, PUR, Black | Quabbin Wire & Cable
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 Cat6 Cable
An Ethernet cable has 8 wires but only 4 are used. Can I use the other 4 to feed another computer? - Quora