Cisco C2921VSECCUBEK9-RF | 2921 Voice Security and CUBE Bundle Router

1. Interfaces: 3 integrated 10/100/1000 Ethernet ports with 1 port capable of RJ-45 or SFP connectivity.
2. RAM: 512 MB (installed) / 2 GB (max) - DDR2 SDRAM.
3. Flash Memory: 256 MB (installed) / 8 GB (max) - CompactFlash.
4. VPN support: IPSec, SSL, and WebVPN.
5. Firewall protection: Stateful firewall, hardware encryption, and intrusion prevention.
6. VoIP Protocols: H.323, MGCP, SIP, and SCCP.
7. Voice Features: Echo cancellation, voice activity detection, comfort noise generation, and voice quality monitoring.
8. Power Supply: AC 120/230 V (50/60 Hz).
9. Dimensions (WxDxH): 43.8 cm x 30.5 cm x 8.9 cm.
10. Weight: 6.4 kg.
11. Operating Temperature: 0°C to 40°C.
12. Humidity Range Operating: 10% to 85% (non-condensing).

Helpful Notes:
1. The Cisco 2921 router is ideal for small to medium-sized businesses.
2. The router provides secure and reliable connectivity for voice, video, and data applications.
3. The CUBE bundle includes Cisco Unified Border Element (CUBE) software, which enables the router to function as a session border controller for VoIP networks.