The Fortinet FortiGate-400E Hardware – Appliance Only FG-400E firewall is one of the best Enterprise firewalls that offers superior performance with a simple management interface. The Fortinet FortiGate-400E Hardware – Appliance Only is rated for 301-500 users, 7.8 Gbps firewall throughput, and 20 Gbps VPN throughput. Trust that your network security environment is protected with any of the Fortinet Fortigate licenses that include FortiCare, FortiGuard Enterprise, and FortiGuard Unified Threat Protection enhanced security features.