| X5500e | X6500e | X8500e | |
| Throughput and Connections | |||
| Firewall throughput | 2.0+ Gbps | 2.3 Gbps | 2.3 Gbps |
| VPN throughput | 400 Mbps | 600 Mbps | 600 Mbps |
| Interfaces 10/100/1000 | 8 | 8 | 8 |
| Serial ports | 1 | 1 | 1 |
| Nodes supported (LAN IPs) | Unrestricted | Unrestricted | Unrestricted |
| Concurrent sessions | 500.000 | 750.000 | 1.000.000 |
| VLAN support (incl/max) | 200 | 200 | 200 |
| Local user database | 5.000 | 6.000 | 8.000 |
| VPN tunnels (incl/max) | |||
| Branch Office VPN | 750 | 750 | 750 |
| Mobile VPN IPSec (incl/max) | 600 | 600 | 600 |
| Mobile VPN SSL | 1.000 | 4.000 | 6.000 |