FG-4401F-DC FortiGate 4400F 4RU NP7 DC Storage Hyperscale Firewall

A storage-bearing firewall for a negative-DC plant

FG-4401F-DC is the Fortinet FortiGate 4401F order with DC power supplies and two 1.92 TB storage devices in a 4 RU chassis. Both parts of the model matter: 4401F identifies the storage-bearing variant, while DC distinguishes its power configuration from the AC order. Keep the complete PID when specifying spares or a replacement.

DC redundancy differs from the AC configuration

Fortinet specifies a -48 V to -60 V DC input range and hot-swappable 1+1 redundancy for DC supplies, compared with 2+2 for the AC configuration. The listed DC replacement supply is SP-FG4000F-DC-PS. Match the offered power components to the site DC system and the installed chassis; a shared 4400F-series name does not make an AC supply interchangeable with this DC order.

Count ports by role rather than one combined total

The architecture guide identifies twelve 100/40GE QSFP28 interfaces named port17 through port28 and sixteen 25/10/1GE SFP28 data interfaces named port1 through port16. HA1, HA2, AUX1 and AUX2 add four separate SFP28 interfaces; two RJ-45 management interfaces are also provided. Keep these four HA and auxiliary interfaces separate from the sixteen ordinary data interfaces when planning connections. Fortinet recommends AUX interfaces for HA session synchronization.

Plan link-speed changes before forming a cluster

The 25G-capable interfaces operate in documented speed groups, so changing between 25G and lower rates can affect other members of the group. Splitting a port17-to-port28 QSFP28 interface into four breakout interfaces restarts the appliance. Review optic choices, peer speeds and the cluster maintenance plan before making that change. Storage, HA paths and the DC supply design should remain separate items in the deployment record.

Fortinet exact DC order, storage and power specifications | Fortinet port names, HA/AUX roles and grouped interface behavior