Core board size 55MMx85MMx1.6MM Main control chip: STM32H743IIT6, -M7@ARM External expansion: 16MB FLASH+32MB SDRAM+EEPROM+SD Onboard CH340USB serial port, supports ISP download and debugging printing SWD debugging simulation interface: 2.0mm Pitch-4Pin dedicated port Feature: Core board size 55MMx85MMx1.6MM Main control chip: STM32H743IIT6, -M7@ARM ; Main frequency 480MHz, 176Pin built-in 2MBFLASH+1MB ; External expansion: 16MB FLASH+32MB SDRAM+EEPROM+SD; Onboard CH340USB serial port, supports ISP download and debugging printing; LCD1 interface: 40PRGB LCD2 interface: 20P, hardware SPI display+ touch; SWD debugging simulation interface: 2.0mm Pitch-4Pin dedicated port; Core board LCD1 driver 4.3-inch RGB parallel port capacitive screen application example Color: Black Material: PCB Package Contents: 1*Development board 1*Charging cable 1* cable 2*Pin headers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.