| Brand Name | Cisco |
| Compatible Rack Unit | 2U |
| Depth | 16.4 |
| Ethernet Technology | Gigabit Ethernet |
| Expansion Slot Type | AIM, HWIC, EVM, PVDM |
| Flash Memory | 64 MB |
| Form Factor | Rack-mountable, Desktop |
| Height | 3.5 |
| Input Voltage | 110 V AC, 220 V AC |
| Management Port, Redundant Power Supply Supported, USB | Yes |
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CISCO2821HSECK9-RF |
| Manufacturer Website Address | http://www.cisco.com |
| Maximum Memory Supported | 1 GB |
| Memory Card Supported | CompactFlash |
| Memory Technology | DRAM |
| Network Technology | 10/100/1000Base-T |
| Number of Network (RJ-45) Ports, Total Number of Ports | 2 |
| Number of Total Expansion Slots | 12 |
| Product Model | 2821 |
| Product Name | 2821 Integerated Services Router |
| Product Series | 2800 |
| Product Type | Router |
| Standard Memory | 256 MB |
| Weight (Approximate) | 25 lb |
| Width | 17.3 |