USB has become a popular interface for exchanging data between cell phone and portable devices. Many of these devices have become so small. Therefore it is impossible to use standard USB components as defined in the USB 2.0 specification.
Micro-USB connector is designed to meet the current and future needs of the Cell Phone and Portable Devices market.
Plug Overmolds
The Micro-USB supplement constrains the size and the shape of the overmolds for the Micro-A and Micro-B plugs. The Micro-A plug's overmold has a rectangular shape, and the Micro-B plug's overmold is rectangular with chamfers. This allows easy recognition and differentiation of the two plugs by the consumers.
Compliant Cable Assemblies
The Micro-USB supplement defines the following additional cables:
