FortiGate 90G & 91G Next-Generation Firewall | High-Performance Security
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Powered by the SP5 ASIC, the firewall delivers significantly higher SSL inspection throughput with up to 27× better power efficiency, allowing organisations to enable full Deep Packet Inspection (DPI) without impacting user experience or network speed.
High-Speed SD-WAN with 10GE Connectivity
The FortiGate 90G is built for Secure SD-WAN, enabling fast, resilient, and cloud-ready branch networking.
With 10GE interfaces, it supports high-speed fibre connections commonly deployed in areas like Bangsar and Cyberjaya, ensuring full bandwidth utilization without bottlenecks.
The 90G also integrates seamlessly with FortiSASE, extending consistent security to remote users and distributed teams.
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Hardware Overview
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10GE Shared Media WAN Ports (2 pairs)
- Flexible “Shared Media” pairs supporting either:
- 10/5/2.5/1 GE RJ45 copper
- 10GE/1GE SFP+ fiber optic
8x GE RJ45 Internal Ports
- Standard copper ports for connecting local devices.
1x RJ45 Console Port
- Dedicated for initial configuration and command-line management.
1x USB Management Port
- For external storage or secondary management tasks.
Form Factor & Design
- Compact desktop, also suitable for wall-mounting.
- Dimensions: 1.65 × 8.5 × 7.0 in (42 × 216 × 178 mm)
- Weight: ~2.47 lbs (1.12 kg)
- Fanless design, 21.73 dBA noise level – ideal for quiet offices.
Specifications
Detailed hardware and performance metrics for FortiGate 90G and 91G models.
1. Hardware Specifications
| Feature | FG-90G | FG-91G |
|---|---|---|
| 10GE / GE Shared Ports | 2 | 2 |
| GE RJ45 Internal Ports | 8 | 8 |
| USB Port | 1 | 1 |
| Console Port (RJ45) | 1 | 1 |
| Internal Storage | — | 120 GB SSD |
| Trusted Platform Module (TPM) | Yes | Yes |
| Bluetooth Low Energy (BLE) | Yes | Yes |
2. Performance Highlights
| Metric | FG-90G | FG-91G | Notes |
|---|---|---|---|
| Firewall Throughput (1518 / 512 / 64 byte UDP) | 28 / 28 / 27.9 Gbps | 28 / 28 / 27.9 Gbps | Measured with Enterprise Traffic Mix |
| IPS Throughput | 2 Gbps | 4.5 Gbps | Logging enabled |
| NGFW Throughput | 2.5 Gbps | 2.5 Gbps | Firewall + IPS + App Control |
| Threat Protection | 2.2 Gbps | 2.2 Gbps | Firewall + IPS + App Control + Malware |
| IPsec VPN Throughput (512 byte, AES256-SHA256) | 25 Gbps | 25 Gbps | — |
| SSL Inspection Throughput (IPS, avg. HTTPS) | 2.6 Gbps | 2.6 Gbps | Avg HTTPS sessions |
3. System Performance & Capacity
| Metric | Value |
|---|---|
| Firewall Latency (64-byte UDP) | 3.23 μs |
| Firewall Throughput (Packets per Second) | 41.85 Mpps |
| Concurrent Sessions (TCP) | 3,000,000 |
| New Sessions per Second (TCP) | 124,000 |
| Firewall Policies | 5,000 |
| Gateway-to-Gateway IPsec VPN Tunnels | 200 |
| Client-to-Gateway IPsec VPN Tunnels | 2,500 |
| SSL VPN Throughput | 1.4 Gbps |
| Concurrent SSL VPN Users (Recommended) | 200 |
| SSL Inspection CPS | 1,400 |
| SSL Inspection Concurrent Sessions | 300,000 |
| Application Control Throughput (HTTP 64K) | 6.7 Gbps |
| CAPWAP Throughput (HTTP 64K) | 23.6 Gbps |
| Virtual Domains (Default / Max) | 10 / 10 |
| Maximum FortiSwitches Supported | 24 |
| Maximum FortiAPs (Total / Tunnel Mode) | 128 / 64 |
| Maximum FortiTokens | 500 |
| High Availability Configurations | Active-Active, Active-Passive, Clustering |
4. Physical & Environmental Specs
| Feature | Value |
|---|---|
| Dimensions (H x W x L) | 42 x 216 x 178 mm |
| Weight | 1.12 kg |
| Form Factor | Desktop |
| Input Rating | 12V DC, 3A (dual redundancy optional) |
| Power Supply | 1 external DC adapter included, up to 2 supported |
| Power Consumption (Average / Maximum) | 19.9 W / 20.53 W (FG-90G) 22.4 W / 23.5 W (FG-91G) |
| Heat Dissipation | 70.0 BTU/hr (FG-90G) 80.1 BTU/hr (FG-91G) |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -35°C to 70°C |
| Humidity | 10–90% non-condensing |
| Noise Level | 21.73 dBA |
| Operating Altitude | Up to 10,000 ft (3,048 m) |
5. Compliance & Certifications
- FCC, ICES, CE, RCM, VCCI, BSMI, UL/cUL, CB
- USGv6 / IPv6
Key Capabilities of FortiGate 90G/91G
FortiGate 90G and 91G combine high-performance networking with advanced security features, making them ideal for branch offices, SD-WAN deployments, and hybrid work environments.
1. SP5 ASIC: Hardware-Accelerated Security
- Delivers 27× more power efficiency and higher SSL inspection throughput than CPU-only systems.
- Enables full Deep Packet Inspection (DPI) without impacting network performance.
- Ideal for growing Malaysian businesses with tight budgets and increasing bandwidth.
2. Integrated Secure SD-WAN
- Built-in SD-WAN functionality ensures reliable, optimized connectivity across multiple internet links.
- Supports 10GE fiber uplinks, perfect for high-speed connections in Malaysian business districts like Bangsar or Cyberjaya.
- Reduces operational costs and improves application performance for cloud apps, ERP, and SaaS platforms.
3. FortiSASE & Remote Worker Support
- Seamlessly integrates with FortiSASE, providing secure cloud access for remote employees.
- Centralized policy enforcement ensures consistent security and access controls, whether users are on-site or remote.
4. Unified Security Fabric
- Connects with Fortinet devices such as FortiSwitch and FortiAP to centralize network management.
- Supports real-time analytics, automated threat detection, and orchestration across the network.
5. Advanced Threat Protection
- FortiGuard AI-powered threat intelligence protects against malware, phishing, zero-day attacks, and APTs.
- Continuous updates and integration with FortiAnalyzer ensure proactive security monitoring.
Use Cases for FortiGate 90G/91G
- Secure Branch Networking: Centralized management with SD-WAN ensures reliable, encrypted connections across multiple branch offices.
- Optimized Cloud & SaaS Access: Accelerate and secure critical applications, including ERP platforms and Microsoft 365, without compromising performance.
- Remote & Hybrid Work Enablement: Provide consistent security policies for remote employees with FortiSASE and VPN access.
- High-Speed VPN & SSL Inspection: Efficiently inspect encrypted traffic and large file transfers while maintaining network throughput.
- OT & IoT Security: Protect industrial and IoT devices with protocol-aware defenses, virtual patching, and real-time threat detection.
Image via fortinet.com
Image via fortinet.com
Deployment & Integration
- Quick Installation for Branches: FortiGate 90G/91G is designed for fast deployment in desktop or rack setups, with plug-and-play connectivity and minimal configuration.
- Seamless Fortinet Ecosystem Integration: Integrates with FortiSwitch, FortiAP, FortiManager, and FortiAnalyzer for centralized control, analytics, and automated policy enforcement.
- Flexible Network Topologies: Supports SD-WAN, site-to-site VPNs, cloud connectivity, and hybrid work environments with high-speed 10GE uplinks.
- Cloud & Remote Management Options: Manage devices via FortiGate Cloud or FortiManager, enabling zero-touch provisioning and remote monitoring for distributed networks.
Get Started with FortiGate 90G/91G
Secure your branch offices, optimize SD-WAN, and protect remote workers with Fortinet’s high-performance firewall solutions. Our experts can help you choose the right configuration, plan deployment, and integrate seamlessly into your network.
