Cisco 2500 series routers provide a variety of models designed for branch office and remote site environments.
These routers are typically fixed configuration with at least two of the following interfaces:

| Product ID | Description | RFQ |
|---|---|---|
| Cisco 2501 | Router - 1E, 2 Serial | Free Quote |
| Cisco 2502 | Router - 1TR, 2 Serial | Free Quote |
| Cisco 2503 | Router - 1E, 2 Serial, 1 ISDN | Free Quote |
| Cisco 2504 | Router - 1TR, 2 Serial, ISDN | Free Quote |
| Cisco 2505 | Router - 1E, 2 Serial, 8 Port Hub | Free Quote |
| Cisco 2507 | Router - 1 TR 1 ISDN, 8 Sync | Free Quote |
| Cisco 2509 | Router - 1E, 2 Serial, 8Async | Free Quote |
| Cisco 2510 | Router - 2 Serial, 1 TR, 2 LS Serial | Free Quote |
| Cisco 2511 | Router - 1 TR 1 ISDN, 16 Sync | Free Quote |
| Cisco 2512 | Router - 2 Serial, 1 TR, 16 LS Serial | Free Quote |
| Cisco 2513 | Router - 1E, 2 Serial, 1 TR | Free Quote |
| Cisco 2514 | Router - 2E, 2 Serial | Free Quote |
| Cisco 2515 | Router - 2TR, 2 Serial | Free Quote |
| Cisco 2516 | Router - 2 Serial, 1 ISDN (S/T),14 Port Hub | Free Quote |
| Cisco 2520 | Router - 1 E, 1 ISDN, 2 HS Sync, 2 LS Sync | Free Quote |