Power Management Bus [PMBus]

A variant of the System Management Bus (SMBus) which is targeted at digital management of power supplies. Like SMBus, it is a relatively slow speed two wire communications protocol based on I²C.

Near-Field Communication [NFC]

“A short-range wireless connectivity standard that uses magnetic field induction to enable communication between devices when they’re touched together, or brought within a few centimeters of each other.”