IMPORTANT NOTE: This Gigabit RJ45 Ethernet Splitter equipped with a 80cm/2.6 ft USB charging cable, it can support charging (recommended power socket as it is more stable). Cannot be used without power connection. It is designed to solve connection problems caused by insufficient cabling. GIGABIT ETHERNET SPLITTER 1 TO 2: Ethernet Port Splitter is mainly used to solve the connection problem caused by insufficient wiring, use the USB power supply cable and support two computers to share one ethernet cable simultaneously by means of the physical tapping method. Note: Two Female Port Workable Simultaneously. 1000MBPS TRANSFER SPEED: RJ45 Splitter Adapter 1 to 2 ways dual female port LAN ethernet cable, the speed of two cable group (1 and 2) can reach 1000Mbps. And the signal transmission of two cable groups will not interfere.