Fortinet FortiManager 300G Centralized Management Appliance
Brand: Fortinet | Category: Network Security
SKU: FORT-FMG300G | Part #: FMG-300G | MPN: FMG-300G
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About the Fortinet FortiManager 300G Centralized Management Appliance
The FortiManager 300G is a purpose-built hardware appliance providing centralized policy management, device provisioning, firmware orchestration, and SD-WAN management for Fortinet Security Fabric deployments. It enables network operations teams to manage up to 300 FortiGate firewalls, FortiSwitch units, FortiAP access points, and other Fabric-connected devices from a single pane of glass, eliminating the operational overhead of per-device configuration.
The 300G supports administrative domains (ADOMs), which logically partition the management environment by geography, business unit, or customer tenant — making it particularly valuable for MSSPs and large enterprises with decentralized IT organizations. Role-based access control (RBAC) with granular permission sets ensures that regional administrators can only view and modify their assigned ADOMs. Policy packages can be created once and pushed to hundreds of devices simultaneously, with a built-in revision history and rollback capability for change management compliance.
SD-WAN Orchestrator functionality is embedded, allowing network architects to design SD-WAN topologies, define application-aware SLA policies, and deploy them across the entire branch estate from a single workflow. The appliance also integrates with FortiAnalyzer for closed-loop visibility, and with external ITSM platforms via REST API and webhook support for automated change management workflows.
Ideal for
- Centralized firewall policy management across 300 branch FortiGate appliances
- Multi-tenant MSSP management platform with isolated per-customer ADOMs
- SD-WAN topology orchestration and SLA policy deployment at scale
- Firmware lifecycle management with automated staging and rollback across the FortiGate estate
- Compliance-driven change management with policy revision history and audit trails
- Zero-touch provisioning automation for new branch site FortiGate deployments
Technical specifications
| Manufacturer | Fortinet |
| Part Number | FMG-300G |
| Form Factor | 1U Rack-mount |
| Managed Devices / VDOMs | 300 |
| Administrative Domains (ADOMs) | 3,000 |
| FortiAP Managed | Up to 3,000 |
| FortiSwitch Managed | Up to 3,000 |
| Disk Storage | 4 TB (2x 2 TB SATA HDD, RAID-1) |
| Network Interfaces | 2x GbE RJ45 (management/HA) |
| HA Support | Active-passive HA with automatic failover |
| Management Protocols | HTTPS GUI, CLI (SSH/Console), REST API, SNMP v1/v2c/v3 |
| Power Supply | Dual redundant AC, 100–240V |
| Power Consumption (Max) | 200 W |
| Dimensions (WxDxH) | 432 x 470 x 44 mm |
| Weight | 9.0 kg |
| Operating Temperature | 0–40°C |
| Certifications | FCC, CE, UL/cUL |
| SD-WAN Orchestrator | Yes, built-in |
| RBAC | Granular role-based access control with per-ADOM permissions |
| API Integration | REST API, webhook, Ansible, Terraform provider |
| Logging | Local log storage; integrates with FortiAnalyzer for extended retention |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
Technical Specifications
| Brand | Fortinet |
| Category | Network Security |
| SKU | FORT-FMG300G |
| Part Number | FMG-300G |
| Condition | New |
| Form Factor | 1U Rack-mount |
| Managed Devices / VDOMs | 300 |
| Administrative Domains (ADOMs) | 3,000 |
| FortiAP Managed | Up to 3,000 |
| FortiSwitch Managed | Up to 3,000 |
| Disk Storage | 4 TB (2x 2 TB SATA HDD, RAID-1) |
| Network Interfaces | 2x GbE RJ45 (management/HA) |
| HA Support | Active-passive HA with automatic failover |
| Management Protocols | HTTPS GUI, CLI (SSH/Console), REST API, SNMP v1/v2c/v3 |
| Power Supply | Dual redundant AC, 100–240V |
| Power Consumption (Max) | 200 W |
| Dimensions (WxDxH) | 432 x 470 x 44 mm |
| Weight | 9.0 kg |
| Operating Temperature | 0–40°C |
| Certifications | FCC, CE, UL/cUL |
| SD-WAN Orchestrator | Yes, built-in |
| RBAC | Granular role-based access control with per-ADOM permissions |
| API Integration | REST API, webhook, Ansible, Terraform provider |
| Logging | Local log storage; integrates with FortiAnalyzer for extended retention |
Frequently Asked Questions about Fortinet FortiManager 300G Centralized Management Appliance
What does the Fortinet FortiManager 300G Centralized Management Appliance do?
The Fortinet FortiManager 300G Centralized Management Appliance is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the Fortinet FortiManager 300G Centralized Management Appliance?
Key specifications for the Fortinet FortiManager 300G Centralized Management Appliance: new condition; manufacturer Fortinet; part number FMG-300G; form factor 1U Rack-mount; managed devices / vdoms 300; administrative domains (adoms) 3,000; fortiap managed Up to 3,000. Manufacturer part number FMG-300G. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Fortinet FortiManager 300G Centralized Management Appliance compatible with my infrastructure?
The Fortinet FortiManager 300G Centralized Management Appliance interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.