Features: Adopted Raspberry PI arm Cortex-M0 + master control RP2040 drivers The fuse adopts the form of fuse holder + fuse, which is convenient to disassemble Type-C interface is used for main control communication brand new and high quality Support UART mode, with onboard TMC2209 driver. The main board is small and exquisite with beautiful appearance Package Includes: 1 Set x R4 Motherboard Specifications: Item: R4 Motherboard for Voron V0.1 Board Size: approx 86x48mm/3.39x1.89in Material:ABS+ Metal Board Layer: 4 Layers MCU: RP2040 Power Input: DC24v / DC12v Logic Voltage: 3.3v Driver: Uart Mode Of Onboard TMC2209 Motor Drive Interface: X, Y, Z, E Temperature Sensor Interface: 100k NTC With Raspberry Pi Communication Interface: Type-C, Serial Port note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.