Choosing the right firewall is essential for protecting business networks, securing remote access, and maintaining reliable connectivity. As businesses adopt cloud applications, hybrid work environments, AI workloads, and increasingly complex IT infrastructure, traditional perimeter security alone may not be sufficient.
Fortinet's FortiGate Next-Generation Firewalls (NGFWs) combine network security, intrusion prevention, application control, VPN connectivity, and threat protection capabilities. However, selecting the right model requires more than comparing advertised firewall throughput. Businesses must also consider the performance of security services, network capacity, interface requirements, scalability, and hardware support status.
According to Fortinet October 2026 Product Matrix, its featured models range from compact appliances such as the FortiGate 30G and 50G to enterprise platforms such as the 200G, 400G, and 900G. Each model serves different performance and deployment requirements.
This guide explains which FortiGate firewalls are worth considering in 2026, how to select a suitable model, and which older devices should be assessed for replacement.
An older firewall may continue forwarding traffic, but that does not necessarily mean it remains suitable for modern security requirements.
Businesses should review their existing firewall infrastructure when they experience any of the following issues.
Enabling intrusion prevention, application control, malware protection, and encrypted traffic inspection increases the processing requirements of a firewall. An appliance that performs adequately with basic firewall rules may struggle when multiple security services are enabled.
More cloud applications, video conferencing, remote users, and connected devices can increase bandwidth requirements. An upgrade can help businesses accommodate higher traffic volumes while maintaining their security controls.
Hardware lifecycle dates determine whether a product remains eligible for manufacturer support. When a device reaches its end-of-support date, businesses may lose access to normal hardware support and product improvements.
Fortinet provides an official Product Life Cycle resource where organizations can check end-of-order, last-service-extension, and end-of-support dates for specific products.
Some businesses need additional high-speed connections, greater segmentation capacity, more VPN tunnels, or improved integration with their existing switching and routing infrastructure.
Important: An older model does not automatically need replacing simply because a newer model exists. The decision should be based on support status, security requirements, capacity, reliability, and the expected life of the network.
The best firewall depends on your organization's size, traffic patterns, deployment environment, and security requirements. The following recommendations are based on the capabilities listed in Fortinet's October 2026 Product Matrix and should be validated against the exact configuration required.
The FortiGate 50G is worth considering for small offices, retail locations, and businesses that need a compact security appliance.
Key specifications:
Firewall throughput: Up to 5 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 2.25 Gbps under Fortinet's enterprise-mix testing.
NGFW throughput: Up to 1.25 Gbps.
Threat protection throughput: Up to 1.1 Gbps.
Best suited for: Small offices, branch locations, and businesses that require security features without deploying a rack-mounted enterprise appliance.
The 50G is an option for organizations upgrading from an older entry-level firewall. However, buyers should confirm the number of users, internet bandwidth, VPN requirements, and the impact of enabling security services before making a final selection.
The FortiGate 70G is a strong candidate for SMB environments that need additional security performance and room for growth.
Key specifications:
Firewall throughput: Up to 10 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 2.5 Gbps.
NGFW throughput: Up to 1.5 Gbps.
Threat protection throughput: Up to 1.3 Gbps.
Best suited for: Growing offices, professional services companies, branch networks, and businesses using multiple cloud-based applications.
The 70G is worth evaluating when an existing entry-level appliance is reaching its capacity or when an organization wants to improve its security inspection capabilities.
The FortiGate 90G is suitable for businesses that need greater performance in a desktop firewall platform.
Key specifications:
Firewall throughput: Up to 28 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 4.5 Gbps.
NGFW throughput: Up to 2.5 Gbps.
Threat protection throughput: Up to 2.2 Gbps.
Best suited for: Larger branch offices, growing businesses with demanding network traffic, and deployments that need stronger security performance than a basic small-office appliance can provide.
The 90G is particularly worth assessing when the network requires more capacity for inspection and application control. Buyers should also evaluate its port configuration, VPN requirements, and future expansion plans.
The FortiGate 120G is a compelling option for organizations seeking a rack-mountable firewall with stronger performance and connectivity options.
Key specifications:
Firewall throughput: Up to 39 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 5.3 Gbps.
NGFW throughput: Up to 3.1 Gbps.
Threat protection throughput: Up to 2.8 Gbps.
Best suited for: Mid-sized organizations, regional offices, businesses with multiple locations, and networks that require substantial VPN and security inspection capacity.
The 120G can be considered for businesses moving beyond smaller desktop appliances. Its suitability will depend on actual traffic, concurrent sessions, port requirements, redundancy plans, and the number of security features running simultaneously.
The FortiGate 200G is worth considering for enterprises that need greater security performance and connectivity than smaller business models provide.
Key specifications:
Firewall throughput: Up to 39 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 9 Gbps.
NGFW throughput: Up to 7 Gbps.
Threat protection throughput: Up to 6 Gbps.
Best suited for: Larger branch offices, distributed enterprises, organizations with demanding inspection requirements, and businesses with complex network segmentation needs.
The 200G offers a significant increase in listed IPS, NGFW, and threat protection throughput compared with smaller models. It may be appropriate for organizations consolidating network security functions or planning for increased traffic.
The FortiGate 400G is designed for demanding environments where security performance and high-speed connectivity are important.
Key specifications:
Firewall throughput: Up to 164 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 25 Gbps.
NGFW throughput: Up to 14 Gbps.
Threat protection throughput: Up to 13 Gbps.
Best suited for: Large enterprise networks, high-traffic data center environments, and organizations requiring higher security inspection capacity.
This model is worth evaluating when smaller firewalls cannot comfortably meet current or projected traffic requirements. Interface speeds, traffic distribution, high availability, and the full security configuration should be considered before deployment.
The FortiGate 900G is an option for organizations operating large, high-throughput networks.
Key specifications:
Firewall throughput: Up to 164 Gbps for 1518-byte UDP traffic.
IPS throughput: Up to 42 Gbps.
NGFW throughput: Up to 31 Gbps.
Threat protection throughput: Up to 30 Gbps.
Best suited for: Large enterprises, demanding security environments, and infrastructure requiring high levels of inspection capacity.
The 900G should be considered when the organization needs its listed security performance and interface configuration. It is not necessarily the best choice for every enterprise: a smaller model may offer a better balance of cost and capability where traffic requirements are lower.
Specifications above are maximum published values from Fortinet's October 2026 Product Matrix. Actual performance varies with configuration and traffic conditions. Always review the official data sheet and sizing requirements before purchasing.
The following comparison focuses on the published performance metrics that are particularly useful when evaluating a firewall upgrade.
Firewall throughput is measured using 1518-byte UDP traffic. IPS and NGFW values use Fortinet's enterprise-mix testing. These are different performance measurements and should not be treated as interchangeable.
How to use this table: Compare the IPS and NGFW figures alongside threat protection throughput, not just basic firewall throughput. These measurements provide a more useful starting point for organizations that intend to enable multiple security features.
Not every older FortiGate model is automatically obsolete. However, devices that have reached end of support, cannot run an appropriate supported software release, or no longer meet security and capacity requirements should be prioritized for review.
These older-generation devices should be high-priority candidates for replacement if they remain in production.
Businesses should verify the exact hardware lifecycle record, current firmware capabilities, and security requirements before planning a migration. For unsupported devices, a replacement should be treated as a security and operational priority rather than simply a performance upgrade.
Upgrade approach: Evaluate a current model such as the 50G, 70G, or 90G, depending on traffic, VPN needs, and security inspection requirements.
The standard FortiGate 60E deserves attention because its listed end-of-support date is December 29, 2026. Organizations operating this model should review their lifecycle status and replacement plans promptly.
Upgrade approach: Compare the 50G, 70G, and 90G against the existing configuration. Do not select a replacement solely because the model number is higher; validate the required performance and interfaces.
The standard FortiGate 80E and 100E are particularly important to review. Published lifecycle information identifies August 17, 2026, as their end-of-support date.
Businesses still using these appliances should verify their exact SKU and contract status, then assess a migration to a currently appropriate model.
Upgrade approach: Consider the 70G or 90G for branch deployments and the 120G or 200G for environments with greater performance and connectivity needs.
The FortiGate 200E should not be classified as unsupported solely because it belongs to an older generation. Published lifecycle information lists its end-of-support date as October 13, 2030.
However, organizations should still assess performance limitations, software compatibility, security requirements, and future growth. An appliance may need replacement before its end-of-support date if it cannot meet the organization's requirements.
Upgrade approach: Compare the 200G and other suitable current-generation models against actual capacity, interface, and security requirements.
FortiGate lifecycle dates can vary between standard devices and variants such as DSL, PoE, LENC, and USG editions. A date associated with one variant should not automatically be applied to another.
Use Fortinet's official Product Life Cycle resource to verify the precise model and SKU, along with end-of-order, last-service-extension, and end-of-support dates.
The lifecycle examples in this article are a snapshot of published information and should be rechecked before procurement or migration.
Selecting a firewall should start with a network assessment rather than a model comparison alone.
Document current internet bandwidth, peak traffic, internal network traffic, and anticipated growth. Consider whether traffic passes through the firewall between VLANs, branches, or data center segments.
Review the performance figures for IPS, NGFW, and threat protection. A firewall must be capable of handling the intended security configuration, not just basic packet forwarding.
Identify the number of remote users, site-to-site VPN tunnels, encrypted connections, and remote locations. Verify the features and limits supported by the exact appliance and FortiOS version.
Review physical ports, uplink speeds, switching requirements, redundancy, rack space, and any need for integrated Wi-Fi or other model-specific features.
Verify the device's support status, available firmware, security subscriptions, and contract requirements. A firewall purchase should include a clear support and maintenance plan.
Before replacing a production firewall, document existing rules, NAT policies, VPN configurations, routing, VLANs, certificates, and logging requirements. Test the new configuration and prepare a rollback plan to minimize downtime.
Firewall selection is only one part of a successful network security deployment. Businesses also need suitable configuration, integration, monitoring, and ongoing maintenance.
Datanet Hosting Solutions is a official authorized partner of Fortinet supports organizations evaluating their IT infrastructure and network security requirements.
Our Fortinet-related services can include:
Firewall consultation: Assessing business requirements and identifying suitable firewall options.
Deployment and configuration: Planning firewall policies, network segmentation, VPNs, and security settings.
Firewall migration: Supporting the transition from older hardware to a suitable replacement.
Security optimization: Reviewing policies, access controls, and security feature configuration.
Ongoing infrastructure support: Helping organizations maintain reliable and secure IT environments.
The scope of services should be confirmed against the organization's requirements and the support arrangements available for the selected Fortinet products.
The best model depends on your network requirements. The FortiGate 50G and 70G are worth considering for smaller environments, the 90G and 120G for growing businesses, and the 200G, 400G, or 900G for more demanding enterprise deployments.
The standard FortiGate 60E has a published end-of-support date of December 29, 2026. Organizations should verify their exact SKU and plan an appropriate replacement if continued manufacturer support is required.
The standard FortiGate 100E has a published end-of-support date of August 17, 2026. Businesses using it should verify their hardware and support status and evaluate a replacement based on security, capacity, and compatibility requirements.
Published lifecycle information lists October 13, 2030, as the end-of-support date for the standard FortiGate 200E. Check the exact variant and current lifecycle record before making a purchasing decision.
No. Basic firewall throughput does not represent the performance available with all security features enabled. Compare IPS, NGFW, threat protection, SSL inspection, VPN performance, and required interfaces.
There is no universal replacement interval. Businesses should review their firewall regularly and plan replacement based on lifecycle dates, security needs, capacity, reliability, firmware support, and future network growth.
Use Fortinet's official Product Life Cycle resource to check the end-of-order date, last service extension date, and end-of-support date for the exact device.
Choosing the best FortiGate firewall to buy in 2026 requires balancing security performance, business requirements, scalability, and product lifecycle status.
The FortiGate 50G, 70G, and 90G are useful candidates for smaller and growing networks. The 120G and 200G offer options for more demanding business environments, while the 400G and 900G target high-throughput enterprise deployments.
Organizations using older models such as the FortiGate 60D, 100D, 60E, 80E, or 100E should review their exact hardware lifecycle status and replacement requirements. Other older models, including the 200E, should be evaluated against their actual support status and performance needs rather than replaced based on age alone.
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