BIGTREETECH SKR PRO V1.2 Control BoardProcessor: ARM cortex-M3 CPU, STM32F407ZGT6 chip.Voltage: 12v or 24v.Size: 95 * 147mm.Number of supported controllers: 6.Outlets: 1 hot bed, 3 heaters, 3 fans.It admits Step/dir, SPI and UART.You can select 5v input, between external (USB) and internal.4-layer PCB.Micro SD card included.
