Cisco CISCO2821-SECK9-RF | 2821 Integrated Services Router 2 x AIM, 4 x HWIC, 1 x Network Module

1. Dimensions: 17.25 x 16.4 x 3.5 in
2. Weight: 25 lb
3. Processor: 256 MB DRAM, 64 MB flash
4. Interfaces: 2 x AIM slots, 4 x HWIC slots, 1 x Network Module slot
5. Network protocols: IPv4, IPv6, MPLS, VPN, QoS
6. Routing protocols: OSPF, BGP, EIGRP, RIP, IS-IS
7. WAN protocols: Frame Relay, PPP, HDLC, ATM, MPLS
8. Security: Firewall, VPN, IPS, Content Filtering, AAA
9. Power supply: AC 120/230 V (50/60 Hz)
10. Temperature range: 32°F to 104°F (0°C to 40°C)
11. Humidity range: 10% to 85% non-condensing
12. Rack-mountable: Yes, with optional rack-mount kit

Helpful notes:
1. The Cisco 2821 is a reliable and versatile router suitable for medium to large-sized businesses.
2. The AIM slots allow for additional functionality such as VPN acceleration and SSL encryption.
3. The Network Module slot allows for easy integration with other network devices.