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Since your issue is regarding an embedded design, we need to route this thread to correct channel so you will be better assisted by the proper team.
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Intel® Customer Support
Thank you for contacting Intel Embedded Community.
The Intel® JHL7440 Thunderbolt™ 3 Controller is a non-embedded device, which is unsupported through this channel. You can confirm this information in the following website:
However, filling out the form stated in the following website as a reference is the proper way to address this type of consultations: