Cisco Cisco2821 Integrated Services Router ISR

The Cisco 2821 Integrated Services Router (ISR) from the Cisco 2800 Series delivers secure WAN routing and integrated voice and data services for branch offices. It includes 1 GB DRAM, 256 MB Flash, 2 x 10/100 Fast Ethernet ports, 4 HWIC slots, 1 AIM slot, 1 Network Module slot, and a USB 1.1 port, and runs Cisco IOS 15.1 with CME 8.5 support in a rack-mountable chassis with an internal AC power supply. This router provides VPN, firewall, and encryption capabilities for secure data transmission across distributed networks and is commonly deployed in branch offices, retail networks, educational institutions, and small data centers to link local networks to service provider connections. Common replacements include Cisco 2911, 2901, and 2811.