Recently I have found that there are a network device called
LPSS Serial Adapter (1) and
LPSS Serial Adapter (2) in my network settings on my 2016 15" MacBook Pro, it has a phone (modem I guess) icon:
I tries to delete it, but it just comes back in a reboot. This doe not appear in any other Macs that I've own.
What is it?
P.S. It appears both on macOS Sierra 10.12.1 (16B2659) and 10.12.2 (16C67)