1.1 General&nbsp;USB has become a popular interface for exchanging data between cell phone and portable devices. Many&nbsp;of these devices have become so small it is impossible to use standard USB components as defined in the&nbsp;USB 2.0 specification. In addition the durability requirements of the Cell Phone and Portable Devices&nbsp;market exceed the specifications of the current interconnects. Since Cell Phones and other small Portable&nbsp;Devices are the largest market potential for USB, this specification is addressing this very large market&nbsp;while meeting all the requirements for electrical performance within the USB 2.0 specification.&nbsp;

Universal Serial Bus Micro-USB Cables and Connectors Specification,Revision 1.01 PDF

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