The Cisco 2901 Integrated Services Router provides the following support:
| Interfaces/Ports | |
| Total Number of Ports | 2 |
| USB | Yes |
| Management Port | Yes |
| Number of Broadband (RJ-45) Ports | 2 |
| I/O Expansions | |
| Number of Total Expansion Slots | 9 |
| Expansion Slot Type | HWIC |
| Expansion Slot Type | PVDM |
| Network & Communication | |
| Network Technology | 10/100/1000Base-T |
| Ethernet Technology | Gigabit Ethernet |
| Management & Protocols | |
| Security Features |
|
| Memory | |
| Standard Memory | 512 MB |
| Maximum Memory | 2.50 GB |
| Memory Technology | SDRAM |
| Flash Memory | 256 MB |
| Memory Card Supported | CompactFlash |
| Power Description | |
| Input Voltage | 110 V AC |
| Input Voltage | 220 V AC |
| Power Source | Power Supply |
| Redundant Power Supply | Yes |
| Physical Characteristics | |
| Compatible Rack Unit | 1U |
| Form Factor | Rack-mountable |
| Height | 1.8" |
| Width | 17.3" |
| Depth | 17.3" |
| Weight (Approximate) | 13.45 lb |