FIM-7921F is the I/O module named in the starting configurations for FG-7081F, FG-7081F-DC, FG-7121F and FG-7121F-DC. That chassis mapping is the verified procurement distinction from FIM-7941F.
Fortinet describes FIM-7921F as hot-swappable and FortiASIC NP7 hardware accelerated, with two GE RJ-45 management ports, two QSFP-DD ports, twenty QSFP28 ports, two SFP28 ports and two 4 TB local log-storage devices.
The public table gives FIM-7921F and FIM-7941F the same short port inventory; it does not state that they are electrically, mechanically, software or entitlement interchangeable. Confirm the chassis BOM, supported FortiOS branch, slot placement, transceiver matrix and service entitlement for this exact PID.
The module SKU does not by itself establish included optics, cables, chassis, processor modules or power supplies. Those components remain separate unless an exact system BOM says otherwise.
Official source: Fortinet FortiGate 7000F Series datasheet.
| Exact model / SKU | FIM-7921F |
| Exact SKU | FIM-7921F |
| Module role | Hot-swappable I/O module for FortiGate 7xxxF systems |
| Acceleration | FortiASIC NP7 hardware accelerated |
| Management interfaces | 2 x GE RJ-45 |
| High-speed cages | 2 x QSFP-DD and 20 x QSFP28 |
| Additional cages | 2 x SFP28 |
| Local log storage | 2 x 4 TB |
| Compatibility rule | Verify exact chassis BOM, FortiOS branch, slot support and vendor entitlement |
| Verified starting-chassis rows | FG-7081F, FG-7081F-DC, FG-7121F and FG-7121F-DC |
| Source match | Fortinet optional-module and chassis ordering tables explicitly identify FIM-7921F, its published interface inventory and the exact chassis rows that use it. |
| Official manufacturer reference | Fortinet FortiGate 7000F Series Data Sheet |
This listing is an accessory or component and may not include the main device. Confirm the supported platform, connector or form factor, included quantity, hardware revision and required mounting or installation parts before ordering.
Fortinet FIM-7921F FortiGate 7000F I/O Module is a FORTINET accessory or component in the FortiGate 7000F Series category. It may require a compatible main device and should not be treated as a complete standalone system.
Compatibility depends on the exact parent platform, chassis or device revision. Provide the installed model and required quantity so YYST Global can check fit before ordering.
Confirm whether the quotation includes only the named component or also includes cables, brackets, optics, licenses or installation hardware. Package contents vary by part number and condition.
The current reference price for FIM-7921F is US$ 9,549.00. Final pricing can change based on stock, quantity, configuration and delivery destination.
Related products

FIM-7941F is a hot-swappable FortiGate 7xxxF I/O module described with FortiASIC NP7 acceleration, two GE RJ-45 management ports, two QSFP-DD ports, twenty QSFP28 ports, two SFP28 ports and two 4 TB local log-storage devices.

FG-7121F-DC is the DC FortiGate 7121F order starting with two FPM-7620F processor modules, two FIM-7921F I/O modules, two management modules and eight hot-swappable redundant 2 kW DC-DC PSUs; Fortinet states the DC combiner is not included.

FG-7121F is Fortinet's 16U twelve-slot AC chassis order starting with two FPM-7620F processor modules, two FIM-7921F I/O modules, two management modules and eight hot-swappable redundant power supplies.

FG-7121F-2-DC is explicitly listed in Fortinet's FortiGate 7121F DC specification column. The cited datasheet supports the 16U platform and shared interface, storage and performance table, but does not provide a separate exact starting-module BOM row for this SKU.

FG-7081F-2-DC is the DC-powered FortiGate 7081F-2 order with one FIM-7941F starting I/O module. Its 12U eight-slot base configuration includes one FPM-7620F, two management modules and six redundant hot-swappable 2500W DC PSUs.

FG-7081F-2 is the AC FortiGate 7081F-2 order built around the FIM-7941F starting I/O module. Fortinet lists a 12U eight-slot chassis with one FPM-7620F, one FIM-7941F, two management modules and six redundant hot-swappable 2500W AC PSUs.

FG-7081F-DC is the DC-powered FortiGate 7081F order. Fortinet lists a 12U eight-slot chassis starting with one FPM-7620F, one FIM-7921F, two management modules and six hot-swappable redundant 2500W DC power supplies.

FG-7081F is Fortinet's AC-powered FortiGate 7081F order: a 12U eight-slot chassis starting with one FPM-7620F processor module, one FIM-7921F I/O module, two management modules and six hot-swappable redundant 2500W AC power supplies.