RJ45 8-PIN STANDARD JACK: Splits the original built-in Ethernet cable (8-pin) into two groups, supporting 2 inputs and 1 output or 1 input and 2 outputs. No power supply or other electronic switches are needed; switch freely between intranet and external network. FAST TRANSMISSION SPEED: The network switch can share a single Ethernet cable into two outputs, and the signal transmission of the two cables will not interfere with each other. Total input supports up to 1000 Mbps for 2 in 1 out or 1 in 2 out. EXTENDED NETWORK ADAPTER: The RJ45 splitter selector can be used as an expansion connector without affecting internet speed. Enjoy your internet browsing. Meets Cat 5, Cat 5e, Cat 6, Cat 7 performance requirements. SAFE AND STABLE: The 2-port Gigabit switch is made of environmentally friendly plastic and a built-in thick PCB motherboard to ensure safe signal transmission. Shielded from disruptive electromagnetism to prevent loss or damage of network signals. COMPACT AND EXPANDABLE: The 2-port Gigabit network switch is small and compact, making it easy to expand your PoE layout even over long distances.