You connect two computer in LAN through USB port using USB cable?

You can connect a laptop to a computer using a special USB cable known as a bridge cable, link cable, transfer cable or USB network cable. These cables have a USB A type connector on both ends and the cable itself is joined via a small adapter that controls the data flow and electrical current between the laptop and computer.

WARNING: DO NOT use an A type to A type USB cable to connect two computers! You will likely damage both computers and/or create a fire hazard. Connecting a USB cable in this manner will NOT network the two computers. Check the related link for further warning information.