KA-NUCLEO-F411CE v2 is a development board in the Arduino UNO form factor with an STM32F411CE microcontroller (ARM Cortex-M4, 512 kB Flash). It has a built-in ST-Link/v2-1 programmer/debugger for operation via microUSB. Power via microUSB or a 7–15 V DC jack, with reverse-polarity protection and ESD protection on USB. On board: an RGB LED, a user LED and button, a reset button, and jumpers (disconnecting UART from ST-LINK, selecting the reference voltage for shields, locking the ST-LINK). Compatible with Arduino shields; dimensions 69×55×14 mm, mounting holes Ø3 mm.