Cisco Part Number: FPR4K-NM-2X100G= is a Cisco FirePower 2 port 100G Network Module
The FPR4K-NM-2X100G= is a two-port single-wide module that supports hot swapping. The two ports are numbered left to right. The FPR4K-NM-2X100G is first supported in FTD 7.2 and ASA 9.18.
The Firepower 4100 contains two network module slots that provide optical or electrical network interfaces. Network modules are optional, removable I/O modules that provide either additional ports or different interface types (1/10/40 Gb). The Firepower network modules plug into the chassis on the front panel.
The Cisco Firepower 4100 is a standalone modular security services platform. It is capable of running multiple security services simultaneously and so is targeted at the data center as a multiservice platform. The series includes the Firepower 4112, 4115, 4125, and 4145.