(Buy a router, and two network cables can be achieved. For detailed settings, please refer to the routing manual (depending on different routing settings). Usually routers have four-port switches. The function of the switch is based on different needs, calling the maximum bandwidth to Office. Assuming that two computers do not perform a lot of network data transmission at the same time, a small number of network data transmissions can reduce the probability of two computers accessing the network at the same time, and this probability can sometimes be very small.)