As we boldly go where no tinkerer has gone before, we come across some starports hiding out near the bottom edge. From left to right we observe:

Headphone jack

USB-C port

Microphone port

Speaker grille

That last one's not a port at all, it's the illustrious S Pen. Removing the S Pen is as smooth as slicing warm butter.

Building off the Note5's mid-production design modification, the S Pen doesn't fit into its slot backwards. Now that's progress.