3Com OfficeConnect External Cable Modem Supports VoIP, integrated firewall, VPN, and other advanced features USB port simplified installation on a Windows Me/2000/98 PC 10BASE-T port connects one computer or up to 15 on a LAN Fast throughput capability: Up to 42 Mbps down, 10 Mbps up Built-in filters (MAC and 32 IP) and a 56-bit security key protect data privacy