Cisco Router 800 series CISCO837-SEC-K9 Interfaces/Ports:
Total Number of Ports:5
Interfaces/Ports: 4 x RJ-45 Network  Ports
Management Port:Yes
Interfaces/Ports:1 x RJ-11 Ports

Cisco Router 800 series CISCO837-SEC-K9 Media & Performance:

Carrier Supported:DSL
Broadband Transmission Technology:ADSL

Cisco Router 800 series CISCO837-SEC-K9 Network & Communication:

Network Technology:10/100Base-TX
Ethernet Technology:Fast Ethernet

Cisco Router 800 series CISCO851-K9 Management & Protocols:

Security Features:Route and router authentication
Security Features:Multilevel user authentication for access to router for management
Security Features:IP basic and extended access lists, Lock & Key
Security Features:Stateful-inspection firewall
Security Features:IPSec 56-bit encryption
Security Features:IPSec 3DES encryption
Security Features:Hardware-accelerated IPSec 3DES encryption
Security Features:PKI with digital certificates
Security Features:Cisco Easy VPN Remote
Security Features:Cisco Easy VPN Server (up to five users)
Security Features:Multiuser IPSec pass-through (TCP and unencapsulated)
Security Features:Multiuser Point-to-Point Tunneling Protocol (PPTP) pass-through
Security Features:Advanced Encryption Standard (AES) (software-based)
Security Features:URL filtering with WebSENSE software and server

ecurity Features:Cisco Router 800 series CISCO837-SEC-K9 Memory:

Standard Memory:48MB
Maximum Memory:48MB
Memory Technology:DRAM
Flash Memory:12MB

Security Features:Cisco Router 800 series CISCO837-SEC-K9 Power Description:

Power Input Voltage:110 V AC
Power Input Voltage:220 V AC
Power Input Voltage Range:110 V AC to 220 V AC
Power Source: AC Adapter