Features: The kit includes SKR Mini E3 V3.0 silent control board and MicroProbe V2 auto leveling sensor, and ender3 extruder bracket, perfect for Ender3 and Ender3V2 3D printers. The SKR Mini E3 V3.0 adopts latest G0 series main control chip STM32G0B1RET6; It is equipped with TMC2209 UARTmode on board and supportssilent printing. SKR Mini E3 v3.0 Board is a 4axis motherboard specifically designed for Ender3 players. With overall heat dissipation and upgrades heat sink, effectively improving heat dissipation performances. MicroProbe V2 uses 5V power supply, The detection signal is an open-drain output externally (10K pull-up resistance is required on the signal of the motherboard, or the IOneeds to be set as input pull-up in the firmware). MicroProbe is only 6g, and its smaller size enhances the compatibility of MicroProbe installation positions, allowing for better installation in some compact positions on extruder and has long service life Specifications: Item：SKR Mini E3 V3.0 Control Board with TMC2209 MicroProbe V2 Kit Chip:SKR Mini E3 V3.0 adopts STMicroelectronicsG0 series main control chip STM32G0B1RET6 TMC2209 UARTmode on board Size:as Pictures Package includes SKR Mini E3 V3.0 Control Board + MicroProbe V2 Auto Leveling Sensor + For Ender3 Extruder Bracket Perfect For Ender3 And Ender3v2 3D Printers Package Includes: 1Set SKR Mini E3V3.0 Control Board 1Set MicroProbe V2 Auto Leveling Sensor 1PC For Ender3 Extruder Bracket note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!