Micro USB Description

Micro USB uses the original USB 2.0 specification, but uses new cables and connectors. The Micro-USB standard is geared to the cell phone, portable devices and mobile markets which require physically small connectors. This standard is designed to replace Mini-USB connectors called out in the USB specification in ultra-thin devices.
"Any device with Micro-USB features is first and foremost a USB peripheral that is compliant with the USB 2.0 specification."

Universal Serial Bus Micro-USB Cables and Connectors Specification, April 2007

micro-USB Connector Manufacturers

Molex
{0.65mm (.0256") Pitch Micro-USB B Receptacle, Mid-Mount, SMT, Lead Free
0.65mm (.0256") Pitch Micro-USB B Receptacle, Bottom Mount, SMT, Lead Free}

Panasonic
{0.30mm Pitch Micro-USB B Right Angle Type. Retention fitting SMD / DIP}

Main Section USB Interface Description