3D Printer Motherboard Kit with Display TFT Touch Screen Set Control Board Parts 12V 24V Item Type: 3D Printer Motherboard Kit Material: PCB Voltage: 12V, 24V Motherboard: For MKS Robin V3.1 MCU: STM32F407VET6(168MHz) FLASH and RAM: 512 KB Flash; 192KB RAM USB Flash Drive: Supported Small Memory Card(not include): Support(SPI3) WIFI Connection: USART1 and SPI2 Virtual USB Devices: Supported Motor Interface: 6 Axes (two Z axes share the same drive) PWM Fan: 2 Channels PWM TTL: Supported Independent Serial Port: Support(UART3) Voltage TVS Protection: Supported Memory Card(not include) Expansion Slot: Not supported MAX31855 Interface: Not supported EEPROM: 4KB AT24C32DM SPI Flash Memory: 8M W25Q64JVSIQ LCD Support: for MKS TS35, for MKS H43, LCD12864, LCD2004 MOS Driver Circuit: Resistance and Shawkit protection TH1, TH2, TB Temperature Circuit: Resistance and Shawkit protection