Cisco Spam & Virus Blocker. Firewall throughput: 0 Mbit/s. Number of users: 50 user(s). Connectivity technology: Wired. Management protocols: HTTP & HTTPS, Supported network protocols: DNS, SSL/TLS, NAT, SMTP, HTTP, HTTPS, FTP, SNMP, NTP, SSH, LDAP, RPC, Telnet, TCP/IP. Power supply: 345 W