... .5 KiBdata RAM for user applications, serial control and input data interfaces,4 general purpose I/O pins, an UART, ... jockey, one RESET key 18.support 5V Power Supply and USB Power Supply input All IO port all the leads, user-friendly expansion ... ,schematic,routines,drives,documents)Product Image: NEW STM32F103VCT6 development board with MP3 , Ethernet , USB host and 2.8inch or 3.8inch TFT touch screen