The Cisco 2821 Integrated Services Router is part of the Cisco 2800 Integrated Services Router Series and provides the following support:
Product Description: 64-256 Flash Memory, 256-1000 DRAM Memory, Two 10/100/1000BaseT, Three PVDM, One Network Module Slot, Four HWIC Slots, Two AIM Slots.
The Cisco 2811 Integrated Services Router provides the following support: ...
The Cisco 2851 Integrated Services Router provides the following support: ...
Key Features ...