The TW100-S4W1CA 4-Port Broadband Router provides the easiest & most secure way to share your high-speed Cable/x DSL Internet connection. It has four 10/100 Mbps half/full duplex switch ports that directly connect to workstations or uplink to another hub or switch. The TW100-S4W1CA also functions as a firewall for your PC, protecting your computer from hackers. It allows up to 253 users to access the Internet using a single ISP account. By sharing just one TW100-S4W1CA, one IP address, & one Cable/x DSL modem, dozens of network users can surf the Internet simultaneously. TRENDnet’s 4-port Broadband Router is a feature-rich product that provides cost-effective functionality & an easy configuration. 1 x 10/100 Mbps port (WAN/ Internet) 4 x 10/100 Mbps Auto-MDIX ports (LAN) Supports Cable/DSL Modems with Dynamic IP, Fixed IP, PPPo E, & PPTP connection types Provides Network Address Translation (NAT) Firewall Supports Virtual Servers (Port Forwarding 10 Entries) & DMZ (5 Entries) Supports static routes (20 entries) Client Filtering by Date/ Time (6 Entries & Special Applications Filter 10 Entries) MAC Address control to allow or deny access (32 entries) Supports Dynamic DNS service Multiple VPN pass-through sessions for IPsec, L2TP, & PPTP (8 VPN sessions) Web URL Filtering (32 URL entries) Universal Plug & Play (UPn P) & Application Level Gateway support for Internet applications such as email, FTP, gaming, & more Easy Web browser configuration & remote management 3-year limited warranty