With Hardware Classes your hardware can be grouped.
Automatically following Classes are defined
Each Hardware Class can have a list of Hardware Types
Hardware Class Notebook could have a list of all your Notebook models in your orgainisation. e.g Dell Latitiude Exxxx
When you create a new hardware or edit an already existing one, you can also create costum fields to store possibly needed information via the hardware. There is a subcategory called Costum Fields, where you can enter the supplemental information. If you click on Columns in the overall view of the hardware and insert the costum fields as described, they can also be displayed per hardware class.