Cisco Router 800 series CISCO831-K9-64 Interfaces/Ports:
Interfaces/Ports: 4 x RJ-45 Network  Ports
Management Port:Yes
Interfaces/Ports:1 x RJ-45 Broadband Ports

Cisco Router 800 series CISCO831-K9-64 Media & Performance:

Carrier Supported:ISDN

Cisco Router 800 series CISCO831-K9-64 Network & Communication:

Network Technology:10/100Base-TX
Network Technology:10Base-T

Cisco Router 800 series CISCO831-K9-64 Management & Protocols:

Security Features:Secure Shell (SSH v2.0)
Security Features:Password Authentication Protocol (PAP), Challenge Handshake Authentication Protocol (CHAP), and Local Password
Security Features:IP Basic and Extended Access Lists, Lock & Key
Security Features:Stateful-Inspection Firewall
Security Features:IPSec 56-Bit Encryption
Security Features:Hardware-Accelerated IPSec 3DES Encryption
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:Cisco Router 800 series CISCO831-K9-64 Memory:

Standard Memory:64MB
Maximum Memory:80MB
Memory Technology:DRAM
Flash Memory:12MB

Security Features:Cisco Router 800 series CISCO831-K9-64 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