Silent Control Board: BIGTREETECH Direct SKR MINI E3 V2.0 adopts ARM Cortex-M3 series STM32F103RCT6 main control chip with 32-bit CPU 72MHz, integrated with TMC2209 to enhance its stability. It's a super easy drop in replacement for Ender 3 printer.plug and playing. Better Thermal Dissipation: The hot-bed MOS tube uses WSK220N04, low on-resistance, which reduces heat generation. Enlarged heat dissipation area protects driving chip and components from problems caused by heat sink. Support Various Functions: BTT SKR MINI E3 V2.0 control board supports various function extensions, such as, BLtouch, filament detection, resumption of shutdown, shutdown after shutdown, etc. 4 Layers for Board: BIGTREETECH Direct SKR MINI E3 V2.0 increased to 4 layers on the control board's back, so as to improve on heat dissipation signal function and anti-interference. Satisfying Customer Services: If you need any information for SKR MINI E3 V2.0, you can writer to us on , and we'll help