StarTech.com 2 to 1 RJ45 10/100 Mbps Splitter/Combiner One adapter required at each end of the connection (RJ45SPLITTER)

Zoro Tools

StarTech RJ45 Cable Adaptor Cable Connect two 10/100 Ethernet devices to a single Cat5/Cat5e cable drop. The RJ45SPLITTER 2-to-1 RJ45 Splitter Cable Adapter increases the number of RJ45 network cOnnections on an RJ45 outlet, allowing two 10/100 Ethernet signals through a single Cat5/Cat5e wire. On one end of the installation the splitter enables you to connect two patch cables from a hub or switch to a single port on a patch panel; while on the other end of the installation the splitter connects to a single Cat5/Cat5e network drop through a wall outlet which can then be split and connected to two separate devices. The patch panel and wall outlet are connected through a single Cat5/Cat5e cable. Designed and constructed for maximum durability, this Ethernet Splitter Cable is backed by StarTech. com's Lifetime Warranty.

Amazon

1 x RJ45 Male to 2 x RJ45 female connections RJ45 Splitter/LAN Splitter/Cat5e Ethernet cable Splitter Combine two cables into one RJ45 wall outlet and then split one Cat 5/5e line back out to two devices using an RJ45SPLITTER at both ends of the installation Allows two 10/100 Ethernet signals through a single Cat 5/5e wire Note: Cannot be used to share a single network line with two computers you need to use a hub instead