Chapter 10 Install and System Administration for FortiOS 5.0 : Differences between Models and Firmware : Differences between Models
  
Differences between Models
There are certain features that are not available on all models. For example, the Switch Controller, which allows a FortiGate unit to manage a FortiSwitch unit, is only available on FortiGate models 100D, 140D, 200D, 240D, 600C, 800C, and 1000C.
Other features may be available only through the CLI on models, while other models have options in the web-based manager. For example, SSL content inspection is a CLI-only feature on FortiGate models 20C, 30C, and 40C, while models 60C+ have options in the web-based manager.
For more information about some of the features that vary by model, please see the Feature/Platform Matrix.
Naming conventions may vary between FortiGate models. For example, on some models the interface used for the local area network is called lan, while on other units it is called internal.
Menus may vary by model. For example, on some FortiGate units, the menu option Router is not available. Instead, routing is configured by going to System > Network > Routing.