All mobile devices must have USB PD support; new labels are also incoming. The USB-C directive, which requires mobile devices to have a universal charging...
Back in the old days, we had mini-USB-B , USB-A, USB-3.0 A, USB-B, USB-3.0-B, micro-USB3.0, and a dozen other semi-proprietary mini-USB-B form factors.
Before that we had all the D-Sub variants like DB-25 and DE-9 for both Serial and Parallel data transfer, DB13W3 and DE-15 for Video signal and dozens of other variants for all sorts of proprietary data formats
Back in the old days, we had mini-USB-B , USB-A, USB-3.0 A, USB-B, USB-3.0-B, micro-USB3.0, and a dozen other semi-proprietary mini-USB-B form factors.
Before that we had all the D-Sub variants like DB-25 and DE-9 for both Serial and Parallel data transfer, DB13W3 and DE-15 for Video signal and dozens of other variants for all sorts of proprietary data formats