Maintain perimeter control without sacrificing uptime. FortiGate 400E Bypass LENC is designed for enterprise environments that need dependable network security at the edge, with 32 x 10/100/1,000 RJ45 ports and 16 bypass pairs to preserve traffic flow when power or appliance status changes. Dual AC power supplies add another layer of continuity for infrastructure teams that cannot afford avoidable interruption. This model is a strong fit for organizations standardizing on high-availability firewall architecture. The dedicated management port and HA port simplify deployment in controlled environments, while the bypass design supports inline protection strategies where fail-open behavior matters. For teams comparing appliances at this tier, the value is in the combination of port density, bypass capability, and Fortinet’s enterprise firewall platform approach. Use it where uptime, segmentation, and operational control all matter: branch aggregation, campus edge, and security-conscious network perimeters. It is built for teams that want a firewall appliance that fits into serious infrastructure planning rather than a basic SMB edge box.