Cisco ISR4451-X-SEC/K9 | ISR 4451 4 x Ports 1000Base-T + 4 x Ports SFP + 8 x Expansion Slots 2U Rack-mountable Integrated Service Router

1. Dimensions: 438.15 x 438.15 x 89.03 mm (17.25 x 17.25 x 3.5 in)
2. Weight: 17.24 kg (38 lbs)
3. Rack-mountable: Yes, with optional rack-mount kit
4. Power supply: AC 100-240V, 50-60 Hz
5. Power consumption: Up to 500W
6. Operating temperature: 0 to 40°C (32 to 104°F)
7. DRAM: 4 GB
8. Flash memory: 8 GB
9. Maximum number of concurrent sessions: 16,000
10. Maximum number of NAT translations: 8,000
11. WAN interfaces: 2 x 10/100/1000 GE, 4 x 1 GE SFP, 4 x 10 GE SFP+
12. LAN interfaces: 4 x 10/100/1000 GE, 4 x 1 GE SFP

Notes:
1. This router supports advanced security features such as intrusion prevention, firewall, and VPN.
2. It can be used in large enterprise networks and data centers.
3. The router has a modular design, allowing for easy upgrades and scalability.