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SKR Mini E3 V3.0 32Bit Control Board with TMC2209 UART Stepper Driver New Upgrade 3D Printer Silent Board for Ender 3, Ender3 Pro, Ender-3 V2 3D Printer\u003c\/h3\u003e\n\u003cp id=\"b\"\u003e\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eMain Control Chip: Adopt STMicroelectronics' latest G0 series main control chip STM32G0B1RET6 or STM32G0B0RET6\u003c\/li\u003e\n \u003cli\u003eThree CNC Fan: Increase the heat dissipation controllable fan to reduce the printer temperature when the device is working\u003c\/li\u003e\n \u003cli\u003eIncreased Heat Sink: Redesign the drive heat sink, strengthen the drive heat dissipation capacity, and greatly improve the heat dissipation performance\u003c\/li\u003e\n \u003cli\u003eUSB Micro B: The PC communication USB interface is upgraded from Mini USB to Micro USB B, which is more adaptable\u003c\/li\u003e\n \u003cli\u003eOutput Power Supply: Increase SPI output port +3.3V power supply, external SPI sensor power supply voltage +3.3V and +5V are optional, support the motherboard to directly supply power to peripherals\u003c\/li\u003e\n \u003c\/ul\u003e"}