Cisco CISCO2811-SEC/K9 | 2800 Series 2811 2 x 10/100Base-TX + 9 x Expansion Slots 1U Rack-mountable Integrated Service Router

Here are 12 technical specifications for the Cisco 2811 Router:

1. Dimensions: 43.8 cm x 43.4 cm x 4.4 cm
2. Weight: 7.3 kg
3. Processor: 1 x 2.0-GHz (single-core)
4. RAM: 512 MB (max 1 GB)
5. Flash Memory: 256 MB (max 1 GB)
6. WAN Interface: 2 x 10/100/1000 Mbps Gigabit Ethernet
7. LAN Interface: 2 x 10/100 Mbps Fast Ethernet
8. Expansion Slots: 4 HWIC, 2 PVDM, 1 NME-XD, 2 AIM
9. VPN Support: IPSec, SSL VPN, PPTP, L2TP
10. Firewall Support: Stateful Inspection Firewall, NAT, PAT
11. QoS Support: Weighted Fair Queuing (WFQ), Class-Based WFQ (CBWFQ), Low-Latency Queuing (LLQ), Class-Based Traffic Shaping (CBTS)
12. Management: SNMP, Telnet, SSH, HTTP, HTTPS, CLI

Helpful Notes:
1. The Cisco 2811 Router is a secure, high-performance device that is ideal for small to medium-sized businesses.
2. With its VPN and firewall capabilities, it provides a secure way to connect remote workers and branch offices to the main network.
3. The router's QoS support ensures that critical applications receive the necessary bandwidth and priority, improving overall network performance.