The CNIG904S is an Internet Broadband Gate with four (4) 100/10Mbps N-Way Switch ports. With this device, an entire network can access the Internet using a single high speed ADSL or Cable modem connection. A built-in firewall protects networks from outside intruders, while a built-in Access Control lets LAN administrators limit Internet access on individual workstations. Authorized Internet users are able to access WEB, FTP, and other servers on your LAN. An "Exposed Computer" and "Special Internet Application" features allow users to use special-purpose servers, two-way communication devices, and other non-standard Internet applications.