he Fortinet FG-400E (Locked Unit) is a mid-range enterprise Next-Generation Firewall (NGFW) from the FortiGate 400E series, designed for campus networks, data centers, and large branch security deployments.
It delivers strong application-aware security, SD-WAN capabilities, and hardware-accelerated threat protection using Fortinet’s dedicated SPU (Security Processing Unit) NP6 and CP9 chips, which offload intensive security tasks to maintain high performance.
The device typically includes a mix of Gigabit RJ45 and SFP ports (around 16 each depending on variant), along with management, HA (high availability), and console interfaces, making it suitable for flexible enterprise network designs.
In terms of performance, it provides up to approximately 32 Gbps firewall throughput, around 6 Gbps NGFW throughput, and up to 5 Gbps threat protection throughput, supporting millions of concurrent sessions, which makes it suitable for high-traffic enterprise environments.
The “locked” condition usually means the device is bound to an existing FortiCare / FortiGate registration, license, or previous owner, so it may require resetting, license transfer, or Fortinet support intervention before it can be fully re-registered or used in a new deployment.
It runs FortiOS, providing centralized management, VPN support, intrusion prevention, antivirus, web filtering, and deep packet inspection in a single platform.
