Hi Stefano,
Thank you for reply.
Yes, you are correct. There is no difference in HL PRO and Sentinel driverless Pro key but Max Driverless key contain higher amount of Feature in comparison of HL Max. All other factors related to memory are same for old and new HL Pro and Max keys.
you need to use both Configuration and Key type of distinguish between new and old keys.
Regards,
Anubhav