[shortdesc] FortiGate 51G-SFP-POE Firewall, SD-WAN, SP5 ASIC, 5 / 5 / 4 Gbps throughput, 1x GE SFP, 4x PoE+ ports, 60W PoE, 64GB SSD [/shortdesc]
[properties]
| Feature | Details |
| Product SKU | FG-51G-SFP-POE |
| Form Factor | Desktop |
| Internal Storage | 64 GB SSD |
| Firewall Throughput | 5 / 5 / 4 Gbps (1518/512/64 byte UDP packets) |
| Interfaces | 2x GE RJ45 WAN (WAN2 PoE+), 1x GE RJ45 FortiLink (PoE+), 2x GE RJ45 Ethernet (PoE+), 1x GE SFP |
| PoE Budget | 60 W |
| Threat Protection | 1.1 Gbps |
| Power Rating | 54VDC |
| Dimensions (H x W x L) | 1.6 x 8.5 x 6.3 inches (40.5 x 216 x 160 mm) |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Certifications | Compliance: FCC, ISED, CE, UL/cUL, CB; Certifications: USGv6/IPv6 |
[/properties]
[specifications]
| System Performance & Capacity |
| IPS Throughput | 2.25 Gbps |
| NGFW Throughput | 1.25 Gbps |
| Firewall Latency | 2.42 μs |
| Concurrent Sessions (TCP) | 720,000 |
| New Sessions/Second (TCP) | 85,000 |
| Firewall Policies | 2,000 |
| VPN Performance |
| IPsec VPN Throughput (512 byte) | 4.5 Gbps |
| Gateway-to-Gateway IPsec VPN Tunnels | 200 |
| Client-to-Gateway IPsec VPN Tunnels | 250 |
| SSL Inspection Throughput | 1.3 Gbps |
| Hardware & Environment |
| USB Port | 1x USB |
| Console Port | 1x RJ45 |
| Power Consumption (Average / Max) | 78.7 W / 78.1 W |
| Heat Dissipation | 268.54 BTU/h |
| Storage Temperature | -31°F to 158°F (-35°C to 70°C) |
| Humidity | 10% to 90% non-condensing |
| Noise Level | Fanless 0 dBA |
[/specifications]
[accesories]
| Accessory Type | Description |
| Optional | Rack Mount Tray (SP-RACKTRAY-02), Mounting Ear Bracket (SP-EAR-FG90G-10), Wall Mount Kit (SP-FG60F-MOUNT-20), AC Power Adaptor (SP-FG50G-POE-PDC-5P) |
[/accesories]
The FortiGate 51G-SFP-POE simplifies SD-Branch architecture by integrating advanced security, SD-WAN, and power delivery with added storage capacity. Built on the Fortinet SP5 ASIC, it delivers high-speed inspection with firewall throughput of 5 / 5 / 4 Gbps (1518/512/64 byte UDP packets). With 64GB of internal SSD storage, this appliance adds onboard storage capacity within a compact desktop form factor.
Designed for flexibility and reduced hardware footprint, the FG-51G-SFP-POE features a fanless desktop form factor ideal for noise-sensitive environments. It includes a dedicated GE SFP port for fiber uplinks and multiple PoE+ capable RJ45 ports (including WAN2 and FortiLink), providing 60W of total PoE budget to power essential branch devices such as access points and IP phones directly from the firewall.