This SKR V1.4 Turbo 3D Printer Mainboard comes pre-configured with X301 firmware and two TMC2209 drivers (X/Y) and two TMC2225 Driver (Z/E). The latest version of the X301 firmware is installed on the SD Card ready to go. The jumpers are configured for UART mode and the drivers are pre-installed. You simply need to install the heat sinks and you're ready to install this into your X301 or any other 3D Printer*.
The SKR V1.4 Turbo uses an LPC1769 which is a 32-bit 120MHz ARM-class Cortex-M3 processor for exceptional 3D Printing.
* Requires installation of appropriate 3D Printer Firmware on SD Card.