| Model | ISR4351-V/K9 |
| Aggregate Throughput | 200 Mbps to 400 Mbps |
| Total onboard WAN/LAN ports | 3 (10/100/1000Mbps) |
| RJ-45-based ports | 3 |
| SFP-based ports | 3 |
| Enhanced service-module (SM-X) slots | 2 |
| NIM slots | 3 |
| Onboard ISC slot | 1 |
| Memory | 4 GB (default) / 16 GB (maximum) |
| Flash Memory | 4 GB (default) / 16 GB (maximum) |
| Power supply options | Internal: AC, DC (roadmap), and PoE |
| Rack height | 2 RU |
| Dimensions (H × W × D) | 43.9 × 438.15 × 507.2 mm |
| IPsec throughput | Up to 1 Gbps |
| IPsec SVTI tunnels | 2500 |
| ACLs per system | 4000 |
| IPv4 ACEs per system | 72,000 |
| IPv4 routes | 1.6M (default), up to 4M |
| IPv6 routes | 1.5M (default), up to 4M |
| Queues | 16,000 |
| NAT sessions | 1.2M (default), up to 2M |
| Firewall sessions | 512,000 |
| VRF instances | 4000 |
Place of Origin: Shanghai, China
Product Status: New
Suitable for: Workstation, Laptop, Desktop
Customization: Available for size and color
Functionality: SDK available, modem function included