Contivity 1100 , X.21/V.35 WAN Bundle, 5 tunnels, X.21/V.35card, Adv Routing, single 10/100 Enet, 4-Port Switch, external auto-sensing power supply, Server software w/ (128bit) Encryption, No Power Cord. This flexible, scalable product family includes the Contivity 1000 series for small office/home offices and branch sites; Contivity 600 for branch offices; Contivity 1700 for office centers, campuses, or branch offices; and the Contivity 2700 and Contivity 4600 for large branch offices or headquarters that want to securely connect remote workers and branch offices. All models offer site-site and remote access VPN capabilities, stateful firewall and high-performance IP routing. The portfolio also includes Contivity 100 and 400 models for branch office VPN applications.