Amazon.com: RJ45 Ethernet Splitter 1 to 2 Dual Port High Speed Adapter,100Mbps Network Ethernet Connector with USB Supply,8P8C Extender Plug for Cat5/5e/6/7/8 Cable(2 Devices Simultaneous Use) : Electronics
Rj45 Cat5 Cat5e Pass Through Connector Network Unshielded 8P8C Modular Pass Through Plug for Ethernet Cables Accessories - AliExpress