Keep high-bandwidth traffic moving while enforcing policy at the speed of the network. Fortinet FG-3400E-LENC is built for enterprise security teams that need dense 100 GbE and 25 GbE connectivity in a platform sized for demanding core, aggregation, and data center deployments. With 4 x 100 GE QSFP28 slots and 24 x 25 GE SFP28 slots, including 22 ports and 2 HA ports, this model is designed for environments where port density matters as much as throughput. It gives architects the flexibility to segment traffic, connect high-speed uplinks, and maintain failover paths without consuming extra chassis space or adding external switching complexity. This is the kind of firewall platform chosen when the network cannot afford bottlenecks. It fits organizations consolidating security at the core, protecting east-west traffic, or building resilient designs around high-capacity links. The port mix supports cleaner architecture decisions and reduces the need to compromise between speed, redundancy, and scale. For teams standardizing on Fortinet, the FG-3400E-LENC offers a strong foundation for large enterprise security deployments where connectivity density and HA readiness are part of the design brief from day one.