Thank you for contacting Intel Community.
Please note that the device part number - EP4CGX150DF31I7NAD ended with the additional suffix 'AD' is referring to customer specific ordering suffix, the material that builds directly for some specific customer request. These are added to the device part number when a device has under gone additional qualification upon request. For general part ordering, you may look for EP4CGX150DF31I7N.
Yes I am from Intel.
Unfortunately we do not have the eligibility to obtain the information since it was only for specific customer. It is advisable for customer to order and use device with general part number which is EP4CGX150DF31I7N .
Truely apologize for the inconveniences.