FG-3801G-DC FortiGate 3801G 3RU NGFW Dual 2+2 Redundant DC PSU

FG-3801G-DC Exact Hardware Variant

FG-3801G-DC is a FortiGate 3800G Series physical next-generation firewall. Fortinet documents the family with four 400GE, six 200GE, eighteen 50GE and two 10GE interface positions, a 3RU form factor and four power-supply positions. The FG-3801G-DC order must retain its exact storage and power suffixes because those differences change site acceptance.

combined DC and local-storage recovery

FG-3801G-DC combines the 3801G storage identity with the DC power variant. Its commissioning plan therefore needs two independent evidence tracks: DC-feed resilience and local log-storage health. A successful network traffic test does not prove disk retention, and a healthy disk status does not prove correct DC redundancy or grounding.

Variant-specific acceptance

Record DC feed labels, polarity, protection and alarms together with both 1.92 TB drives, storage status, retention settings and external log export. Exercise one approved power-feed failure and one storage alert as separate tests, preserving timestamps and recovery results.

Common high-speed interface plan

Map every QSFP-DD, QSFP56, SFP56 and 10GE connection to its optic or cable PID, peer port, lane mode, zone and redundancy role. Validate supported FortiOS, transceiver compatibility, airflow, rack loading, management access, HA synchronization and a documented rollback before carrying production traffic.

Related 3800G variants

• FG-3800G: base appliance and external log design
• FG-3801G: storage-bearing appliance acceptance
• FG-3800G-DC: telecom DC power and grounding

Official sources: FortiGate 3800G Series data sheet, FortiGate 3800G Series quick-start guide and Fortinet 3800G/3801G fast-path architecture.