Cisco 921 Gigabit Ethernet Security Router

2 ports Gigabit Ethernet (GE)
4-port GE managed switch
Integrated USB 2.0
1GB DRAM
2GB Flash (Not Upgradable)
Features and benefits
High availability and business continuity

Redundant WAN connections for failover protection and load balancing
Dynamic failover protocols such as Virtual Router Redundancy Protocol (VRRP, RFC 2338), Hot Standby Router Protocol (HSRP), and Multigroup HSRP (MHSRP)

Consistent, high application performance levels

Can run multiple services simultaneously with no performance degradation

Risk mitigation with multilevel security

Network perimeter security with integrated application inspection firewall
Data privacy through high-speed IP Security (IPsec) Triple Data Encryption Standard (3DES) and Advanced Encryption Standard (AES) encryption
Enforced security policy with intrusion prevention
Security hardware acceleration
FlexVPN
Next-generation encryption for secure network communications systems, reliable for the next decade

Feature consolidation for real estate, Capital Expenditures (CapEx), and management savings

Supports LAN connections

Unified control of wired and wireless networks from a common console for streamlined operations

Simplifies and centralizes configuration and management of wireless and wireline devices

Remote configuration and management to keep local IT staff lean

Supports separate console ports