ITEM NAME:STM32F103C8T6 ARM 32 Minimum System Development Board Module 72MHz 64K Description: - Model: STM32F103C8T6 - Core: ARM 32 - Debug mode: SWD - 72MHz work frequency - 64K flash memory - 2.0-3.6V power, I/O - Reset(POR/PDR) - 4-16MHz crystal Package Included: 1Pcs motherboard 2Pcs pin.Model: STM32F103C8T6. - 72MHz work frequency. - Core: ARM 32. - 4-16MHz crystal. People always bought together with. - 2.0-3.6V power, I/O.