Understanding the iPad hardware
One of the key factors of the success of Apple iOS devices is the proper selection of its hardware components. Just like the iPhone, the iPad is also a collection of modules, chips, and electronic components from different manufacturers. Internal images for all iPads can be found in the teardown section of http://www.ifixit.com/Device/iPad.
The following images show the internals of the iPad Pro. The images were taken after dismantling the iPad Pro cellular model and were obtained from https://www.ifixit.com/Teardown/iPad+Pro+Teardown/52599.
The following image shows side 1 of the iPad Pro:
The following image shows side 2 of the iPad Pro: