Features: Adopts STMicroelectronicsG0 series main control chip STM32G0B1RET6 Redesign heat dissipation fins,better heat dissipation capacity and greatly improve heat dissipation Add 3 controllable cooling fans to reduce the printer temperature during device operation Increase the SPIoutput port + 3.3V supply, and the external SPIsensor supply + 3.3V and + 5V, and it supports the mainboard to directly supply to peripheraldevices. This set comes with BLTouch kit and 80cm extension cord. Specifications: Item：SKR Mini E3 V3.0,BLTouch kit Chip:SKR Mini E3 V3.0 adopts STMicroelectronicsG0 series main control chip STM32G0B1RET6 Extension cord:approx 80cm/31.5in Output port SPIoutput port + 3.3V supply External SPIsensor supply + 3.3V+ 5V Package Includes: 1 Set SKR Mini E3 V3.0,BLTouch kit 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!