netbox/docs/models/dcim/moduletype.md

Module Types

A module type represent a specific make and model of hardware component which is installable within a device and has its own child components. For example, consider a chassis-based switch or router with a number of field-replaceable line cards. Each line card has its own model number and includes a certain set of components such as interfaces. Each module type may have a manufacturer, model number, and part number assigned to it.

Similar to device types, each module type can have any of the following component templates associated with it:

• Interfaces
• Console ports
• Console server ports
• Power ports
• Power Outlets
• Front pass-through ports
• Rear pass-through ports

Note that device bays and module bays may not be added to modules.

Automatic Component Renaming

When adding component templates to a module type, the string {module} can be used to reference the position field of the module bay into which an instance of the module type is being installed.

For example, you can create a module type with interface templates named Gi{module}/0/[1-48]. When a new module of this type is "installed" to a module bay with a position of "3", NetBox will automatically name these interfaces Gi3/0/[1-48].

Automatic renaming is supported for all modular component types (those listed above).