Fortinet is expanding its firewall lineup with two new models, the FortiGate 3500G and 400G, aimed at organizations dealing with rising encrypted traffic, AI workloads, and increasingly distributed networks. The release focuses on performance and security operating together, rather than forcing trade-offs that have historically limited firewall deployments.
The timing reflects a broader shift in how enterprise traffic behaves. Data is no longer just flowing in and out of a network perimeter. It is moving laterally across systems, between cloud environments, and through new, agent-based applications. That shift is exposing the limits of traditional firewall architectures, particularly when advanced inspection and threat protection are enabled.
The FortiGate 3500G is positioned for data center environments where scale and internal traffic visibility are critical. It supports high-speed connectivity and is designed to handle large volumes of east-west traffic tied to AI workloads and zero-trust architectures.
The 400G, by contrast, targets the enterprise edge, where organizations are trying to maintain consistent security across branch locations, cloud integrations, and hybrid setups without degrading performance.
Both systems run on Fortinet’s FortiOS and use custom ASIC processors, which the company continues to emphasize as a key differentiator. The goal is predictable performance even with security features turned on, an area where many software-based approaches can struggle.
Fortinet is also building AI awareness directly into the platform, including detection of unsanctioned AI usage and deeper inspection of AI-related data flows.
Underneath the product launch is a familiar strategy. Fortinet is reinforcing its platform approach, where hardware, operating system, and threat intelligence are tightly integrated. This is partly about performance, but also about reducing operational complexity for customers managing multiple tools across hybrid environments.
Some caution is warranted around the performance claims. The company’s comparisons to competitors are based on publicly available data and internal interpretation, which is standard practice in the industry but not always reflective of real-world deployments.
Overall, the announcement shows how firewall vendors are adapting to an environment shaped by AI, new encryption standards, and distributed infrastructure. The distinction between data center and edge security is narrowing, and vendors are responding by trying to deliver consistent performance and visibility across both.
