PASBUY 2 Ports Network 10-100M 2 Way RJ45 Push Button Metal Mini Switch Splitter Selector Box (2 Ports) Simple and convenient installation, button switch. No extend Power, no electrical circuit between inter net and outer net, physical isolation and no electrical interference. Mini plastic box, manual switch, 10-100M network switch. This unit will allow you to switch between up to four different network devices on one jack. This is a 2 way RJ45 AB Switch Box.