Cisco 2821 Integrated Services Router - 4 x HWIC, 1 x NME

1. Dimensions: 17.25 x 16.4 x 3.5 inches
2. Weight: 25 pounds
3. Rack-mountable: Yes
4. Interfaces: 2 x 10/100/1000 Gigabit Ethernet, 2 x USB 2.0, 1 x console, 1 x auxiliary
5. Expansion Slots: 4 x HWIC, 1 x NME
6. RAM: 512 MB (max 1 GB)
7. Flash Memory: 256 MB (max 256 MB)
8. VPN Support: IPSec, SSL, 3DES, AES
9. Firewall Protection: Stateful packet inspection, access control lists, denial-of-service prevention
10. Routing Protocol: OSPF, RIP-1, RIP-2, BGP, EIGRP, HSRP, VRRP, PIM-SM, IGMPv3, DVMRP, GRE
11. Power Supply: AC 120/230 V (50/60 Hz)
12. Operating Temperature: 32°F to 104°F

Notes:
1. The Cisco 2821 supports up to 150 VPN tunnels, making it ideal for remote offices and teleworkers.
2. The router's modular design allows for easy upgrades and expansion as your network grows.
3. The Cisco 2821 offers advanced security features to protect your network from cyber threats.