LIEZHUA Gigabit Ethernet Splitter 1 to 2 - Network Splitter with USB Power Cable, RJ45 Internet Adapter 1000Mbps High Speed for Cat 5/5e/6/7/8 Cable [2 Devices Networked Simultaneously]

LIEZHUA Ethernet Splitter 1 to 4 - Network Splitter with USB Power Cable, RJ45 Internet Splitter Adapter 1000Mbps High Speed for Cat 5/5e/6/7/8 Cable [4 Devices Networked Simultaneously]

MT-VIKI 48V POE Ethernet Splitter 1 to 2 1000Mbps, 60W (No Power Supply Required), POE Gigabit Dual RJ45 Splitter for Cat5e/6/7/8 Cable, Work with POE IP Camera, POE Switch and More

How To Make Your Own Ethernet Cross-Over Cable (7 Steps)

Build Your Own Crossover Cable, USB to Ethernet Extender, and More