INTERNET SECURITY CARD HAVING BUILT-IN HUB

摘要

PURPOSE: An Internet security card having a built-in hub is provided to cut off an intrusion to a connected computer from an external Internet by supplying a switch capable of selecting and connecting an intranet and the Internet in a network card, thereby cutting off the other connection network while one network is connected. CONSTITUTION: An extension slot connection unit(61) capable of being connected with a PCI expansion slot of a computer is constituted in a security card(100). In addition, a LAN controller(50) having a LAN controlling function of a LAN card and a PCI bus controlling function and a hub(20) for an easy connection to an intranet and the Internet and other computer are constituted. A switch unit(10) physically selects and connects each network between the LAN controller(50) and the hub(20).