Notebook M-26 Series Support Docs by product:

Not sure which notebook to select?
The model number is located on the bottom of your notebook.

 ArrowGateway® M-26 Series Notebook
 ArrowGateway® M-2623u Notebook
 ArrowGateway® M-2624u Notebook
 ArrowGateway® M-2625u Notebook
 ArrowGateway® M-2626u Notebook