Iseebiz 2 Ports Network Switch Splitter Selector Hub 2-In 1-Out or 1-In 2-Out Network LAN Switch Rj45-2m for Pc Laptop RJ45 Dual Ports Simple and convenient installation, Mini plastic box, manual switch. No extend Power, no electrical circuit between inter net and outer net, physical isolation and no electrical interference 100M network switch 2 input and 1 output, 1 input and 2 output as a switch