AIO II V3.2 Mainboard All in One II 32 Bit MCU 32bit 256 Microsteps Controller Board Support Marlin For 3DP/CNC 3D Printer     This is an All In One (So we call it AIO) solution with 32-bit MCU and 256-microsteps stepper motor drive for 3DP/CNC or similar machine.It has everything you need to assemble a 3DP, including a display and an SD card holder.   Features: Compact size: 105mm x 50mm fully integrated all in one solution: STM32F103 MCU (Run Marlin 2.0 ) CH340 for high speed USB serial connection and firmware upload 4X ST820 stepper drivers, 256 Microsteps UNIVERSAL POWER: can be used with 7V-35V for motors / heated bed integrated high precision power regulators (DC/DC): 5V 1A Max and 3.3V 600mA Max LDO **Onboard SD card socket ** Onboard RGB mini12864 LCD Onboard RGB control Support firmware upload via USB or SD   PCB： High quality, High temperature FR4-TG130 PCB Gold ENIG finishing   More information,pls pay attention our wiki https://wiki.fysetc.com/AIO_II/   Package listing: 1*board    ...