... Ethernet Network / Transport Protocol: IPSec SNMP, HTTP, SSH-2 CISCO1841-HSEC/K9 Device Type Router Form Factor External - modular - 1U Dimensions (WxDxH ... Protocol IPSec Remote Management Protocol SNMP, HTTP, SSH-2 Features Cisco IOS Advanced IP services , firewall protection, hardware compression, hardware encryption ... (NAC) Power AC 120/230 V ( 50/60 Hz ) CISCO1841-HSEC/K9