STM32F103C8T6 ARM STM32 Minimum System Development Board Module CLONE

THIS IS CLONE VERSION IT USES WCH CH32F103C8T6 CHIP
Specifications
Model: STM32F103C8T6
Kernel: ARM32 bit Cortex™-M3CPU
PCB Size: 22.80mm x 53.34mm 
Debug Mode: SWD
Power Supply I/O pins: 2.0-3.6V
Reset: Power ON/OFF reset
Functional mode: Sleep,Stanby,Shutdown modes
The maximum operating frequency of 72MHz
Single-cycle multiply and hardware divide
64k Flash program memory
20k bytes SRAM
4-16MHz crystal oscillator
Embedded 8MHz RC oscillator
generates CPU clock PLL
VBAT power for the RTC back registers
37 Quick I / O ports, the I / O ports can be mapped to 16 external interrupts etc.

Package include: 2 x 20 Male pin header