A console server is a device, usually accompanied by software that contains drivers and other relevant information, which acts as a hub.  Much like a traditional server, a console server connects machines together whether through a cord or over a wireless network.  It consists of a box or plug that has numerous serial ports on it, maximum 48, in order to connect a variety of machines or other devices to it.  With this device in place, IT professionals can troubleshoot problems, repair problems, and otherwise gain access to a user’s machine from a remote location.  No matter how large the network is this phenomenon will still work.