| Manufacturer Part Number | ISR4431-K9 |
| Manufacturer Part Option | ISR4431/K9, ISR4431, 800-40617-01 |
| Brand | Cisco |
| Product Type | Router |
| Form Factor | Rack Mountable 1U (Without Side Mount) |
| Ports |
4 x WAN/LAN 1GE Ports 4 x 10 GE SFP+ Ports |
| Aggregate Throughput | From 500 Mbps to 1 Gbps |
| Flash | Without System Flash |
| Dimensions (H x W x D) | 43.9 x 438.15 x 507.2 mm |
| Additional Information | Without power supplies |