FortiGate 121G Firewall

FortiGate 121G is a high-performance next-generation firewall and Secure SD-WAN appliance, designed for enterprise branch and distributed environments that require strong threat inspection, high throughput, and secure connectivity.

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Fortinet FortiGate 121G

Overview:

FortiGate 121G integrates firewall, Secure SD-WAN, VPN, and deep threat inspection into a single platform powered by Fortinet’s FortiOS and SP5 security processors. It delivers scalable performance for hybrid networks, cloud applications, and encrypted traffic without sacrificing throughput or visibility.

With large port density and flexible interface options, FortiGate 121G adapts to complex enterprise network topologies while maintaining consistent security policies and rapid performance for critical applications.

Why Choose FortiGate 121G?

Enterprise-Grade Protection

Intrusion Prevention System (IPS).
Antivirus and web/DNS filtering
Application control and inspection

Secure SD-WAN Integration

Application-aware traffic steering
SLA-based path selection.
Cloud and SaaS performance optimisation.

High Performance Architecture

Strong firewall and IPS throughput.
Efficient encrypted traffic inspection.
Scales for distributed enterprise environments.

Common Use Cases

Enterprise Branch Offices

Provides consistent security enforcement, high throughput, and secure connectivity for large branch offices with heavy user and application traffic.

Secure SD-WAN Edge

Optimises multiple WAN links while maintaining unified security policies for cloud, SaaS, and on-premise applications.

Hybrid Cloud Connectivity

Secures traffic between on-premise infrastructure and public cloud platforms with deep inspection and encrypted traffic handling.

VPN & Remote Access Hub

Supports large numbers of site-to-site and remote access VPN connections with strong encryption performance.

Campus & Multi-Site Networks

Centralised security policy enforcement and visibility across distributed enterprise locations.

Technical Specifications – FortiGate 121G

Performance

Firewall ThroughputUp to 39 Gbps
IPS ThroughputUp to 5.3 Gbps
NGFW ThroughputUp to 3.1 Gbps
Threat ProtectionUp to 2.8 Gbps
SSL InspectionUp to 3 Gbps

VPN & Remote Access

IPsec VPN ThroughputUp to 35 Gbps
Site-to-Site IPsec Tunnels~2,000
Client-to-Gateway Tunnels~16,000
SSL-VPN ThroughputUp to 1.5 Gbps
Concurrent SSL-VPN Users~500

Interfaces & Ports

GE RJ45 Internal Ports16
Management / HA GE Ports2
GE SFP Slots8
10GE SFP+ (FortiLink)4
USB Port1

System Performance

Concurrent Sessions~3,000,000
New Sessions / sec~140,000
Firewall Policies Supported10,000+
Firewall Latency~3.17 μs

System Limits

Virtual Domains (VDOMs)Up to 10
Max FortiSwitches Supported32
Max FortiAPs (Total / Tunnel)128 / 64
Max FortiTokens5,000

Management & Services

Secure SD-WANYes
Central ManagementFortiManager
Logging & AnalyticsFortiAnalyzer
Security ServicesFortiGuard AI

Subscription & Licensing

FortiGate 121G uses subscription-based FortiGuard services to enable advanced threat protection. The device continues to operate as a basic firewall without active subscriptions, but enhanced security services require licensing.

  • Unified Threat Protection (UTP)
  • Advanced Threat Protection (ATP)
  • Enterprise Protection
  • FortiCare Support
  • Subscription terms: 1-year, 3-year, or 5-year

FortiGate 121G Solutions by SysIT Malaysia

SYSIT, based in Kuala Lumpur, Malaysia, provides expert FortiGate firewall selection, licensing advisory, deployment, Secure SD-WAN optimisation, and ongoing technical support across Malaysia.

Request FortiGate 121G Quote from SYSIT

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