FortiGate 40F (FG-40F)

Description

The FortiGate 40F (FG-40F) combines enterprise-grade network security and connectivity in a compact desktop appliance. It is built around Fortinet’s security-focused hardware acceleration architecture and FortiOS, providing firewall, secure networking, VPN, SD-WAN, and security-management capabilities in a single platform.

The FG-40F provides five Gigabit Ethernet RJ45 interfaces, including one dedicated WAN port, three internal Ethernet ports, and one FortiLink port. It also includes a console port and USB connectivity for management and maintenance.

Its fanless design makes the appliance suitable for environments where low acoustic noise and compact installation are important. The unit measures approximately 38.5 × 216 × 160 mm and weighs approximately 1 kg.

Key Specifications

Fortinet’s current 40F-series datasheet specifies the above physical, power, environmental and port characteristics.

Network Interfaces

The FG-40F includes:

• 1 × Gigabit Ethernet WAN
• 3 × Gigabit Ethernet internal ports
• 1 × Gigabit Ethernet FortiLink port
• 1 × Console port
• 1 × USB port

This configuration provides a straightforward deployment option for branch networks without requiring an additional access switch for basic connectivity.

Next-Generation Firewall

The FG-40F provides security functions through FortiOS, allowing organizations to consolidate network security and connectivity into one appliance.

Typical capabilities include:

• Stateful firewalling
• Application control
• Intrusion Prevention System (IPS)
• Web filtering
• Antivirus / anti-malware security
• SSL inspection capabilities
• VPN connectivity
• Network address translation (NAT)
• Security policies
• Network segmentation
• Secure SD-WAN

Fortinet describes the 40F family as a converged networking and security platform combining NGFW and SD-WAN capabilities.

Secure SD-WAN

The FG-40F is designed for secure SD-WAN deployments, allowing organizations to combine networking and security functions at branch locations.

Typical applications include:

• Internet-based WAN connectivity
• Branch-to-headquarters connectivity
• Application-aware WAN routing
• Secure branch networking
• Redundant WAN designs
• Centralized security policy management

The 40F family uses Fortinet’s security-focused acceleration architecture to optimize networking and security processing.

VPN Connectivity

The FortiGate 40F supports secure VPN connectivity for connecting remote locations, users, and corporate networks.

Typical deployments can include:

• Site-to-site IPsec VPN
• Remote-access VPN
• Branch-to-headquarters VPN
• Secure inter-site communication

The exact VPN features and supported capabilities depend on the FortiOS release and licensing configuration.

FortiLink

One of the five Gigabit RJ45 interfaces is designated for FortiLink, allowing the FortiGate appliance to integrate with compatible Fortinet FortiSwitch devices.

This enables centralized management of compatible switching infrastructure from the FortiGate security platform.

Hardware Architecture

The FG-40F uses Fortinet’s integrated security-processing architecture rather than relying solely on a general-purpose CPU for security workloads. Fortinet identifies the platform as using a FortiASIC NP6XLITE-based network acceleration architecture and an ARMv8 processor platform.

The hardware-accelerated design is intended to improve performance while maintaining the compact, low-power form factor of the appliance.

Performance

Fortinet’s published specifications for the FG-40F include approximately:

These are manufacturer test figures and actual performance can vary according to traffic patterns, enabled security services, inspection settings, packet sizes, VPN usage, and FortiOS configuration.

Fanless Desktop Design

The FG-40F uses a fanless 0 dBA design, making it appropriate for:

• Office environments
• Branch offices
• Retail locations
• Small server rooms
• Network cabinets where low noise is preferred
• Security installations with limited space

Fortinet specifies an operating temperature range of 0°C to 40°C and storage temperature of -35°C to 70°C.

Power Requirements

The FG-40F is powered by an external DC adapter.

Input rating: 12V DC, 3A
AC adapter input: 100–240V AC, 50/60Hz

Fortinet specifies average/maximum power consumption of approximately 7.74W / 9.46W in the current 40F-series datasheet, depending on the tested configuration.

Key Features & Benefits

• Next-Generation Firewall for branch and SMB security.
• Secure SD-WAN functionality.
• 5 × Gigabit RJ45 interfaces.
• Dedicated WAN interface.
• Dedicated FortiLink interface for FortiSwitch integration.
• Integrated VPN capabilities.
• FortiOS security and network management.
• Hardware-accelerated security processing.
• Fanless 0 dBA operation.
• Compact desktop form factor.
• Low power consumption.
• Suitable for distributed enterprise and branch deployments.
• Fortinet Security Fabric integration.

Typical Applications

The FG-40F is suitable for:

• 🏢 Small and medium-sized businesses
• 🏬 Branch offices
• 🏪 Retail locations
• 🏭 Distributed industrial sites
• 🌐 Secure Internet gateways
• 🔐 Network security and firewall deployments
• 🔗 Site-to-site VPN networks
• ☁️ Secure SD-WAN deployments
• 🛡️ Network segmentation
• 🔌 FortiSwitch-managed networks

Important Licensing Note

The FG-40F is the hardware appliance. Fortinet security services such as FortiGuard subscriptions may be purchased separately or included depending on the specific bundle/SKU being sold.

Therefore, if your inventory item is FG-40F hardware only, do not advertise it as including a specific FortiGuard subscription unless the exact bundle SKU confirms that subscription.

Important Model Distinction

Do not confuse:

FG-40F → FortiGate 40F, no integrated Wi-Fi.

FWF-40F → FortiWiFi 40F, which adds integrated wireless networking.

The 40F family also includes FG-40F-3G4G and FWF-40F-3G4G variants with cellular connectivity.