Cisco C1921-3G-V-SEC/K9 | 1900 Series 921 2 x Ports 1000Base-T LAN + 1 x Port ADSL2+ WAN + 2 x Expansion Slots 24Mb/s 1U Rack-mountable Integrated Service Router

1. Product Type: Integrated Services Router
2. Form Factor: Desktop, Rack-mountable
3. WAN Ports: 2 x 10/100/1000Mbps
4. LAN Ports: 2 x 10/100/1000Mbps
5. Network / Transport Protocol: IPSec, L2TPv3, PPPoE, DHCP, DNS, DDNS, DHCPv6, ICMPv6, IPv6, IGMPv3, OSPF, BGP, PIM-SM, static IPv4 routing, static IPv6 routing, GRE, Bidirectional Forwarding Detection (BFD)
6. Data Link Protocol: Ethernet, Fast Ethernet, Gigabit Ethernet
7. Capacity: IPSec VPN tunnels: 50, SSL VPN peers: 2, Virtual interfaces (VLANs): 50
8. Network Services Compatibility: Cisco IOS IP Base
9. Encryption Algorithm: DES, Triple DES, AES, SSL, TLS, PKI
10. Authentication Method: RADIUS, TACACS+, Secure Shell (SSH), RADIUS, TACACS+
11. Power Device: Internal power supply
12. Dimensions: 34.29 cm x 25.4 cm x 4.45 cm

Notes:
1. The Cisco 1921 router provides highly secure data, voice, and video communication to small and medium-sized businesses.
2. It supports multiple protocols and has a high capacity for VPN tunnels, VLANs, and SSL VPN peers.
3. The router is easy to install and manage, making it an ideal choice for businesses with limited IT resources.