- Name: MCUDev DevEBox STM32H7XX_M - Link to all relevant information: https://github.com/mcauser/MCUDEV_DEVEBOX_H7XX_M MCUDev STM32H7XX_M mini dev boards. There are two versions with different STM32H7 chips: STM32H750VBT6 - 128K flash STM32H743VIT6 - 2048K flash Markings: DevEBox STM32H7XX_M Ver:V2.0 SN:1907