Network (LAN) card

The LAN card enables you to link your computer to other computers using a network. Usually available as PCI cards, the LAN card plugs into your computer and upon configuration lets you share files and use other resources, such as printers, in a network. It is most often found in office computers where information needs to be shared. Depending upon the network interface they support, there are basically two types of network cards available - coaxial or UTP.  Coaxial is similar to the cable that lets you view cable TV at home and the UTP LAN card is a smaller wire that enables faster data transfer and ease of connectivity.