Using only 2 pairs of Ethernet - Electrical Engineering Stack Exchange
RJ45 Ethernet Splitter Cable, TSV RJ45 1 to 2 LAN Network Adapter Ethernet Splitter Cable Male to Female Fit for Cat5, Cat5e, Cat6, Cat7 LAN Ethernet Socket Connector Adapter - Walmart.com
Straight Thru UTP Cables
Cat5E 2-Pair UTP Solid LAN Cable (iB-PCAB2545) | iBall