Hi Sylvia,
I want to be 100% clear in my understanding: what is the MAX. voltage that the NUC can accept on its Internal Power connector? The datasheet refers to the connector as "12-24V", but also talks about 19V +/- 10%, and you refer to the "12V to 19V" range. It would be very helpful to know the absolute min. and absolute max. for proper operation with no damage.
Thanks,
Scott