The Arduino Nano 33 IoT with Dev.Kit is a small, powerful development board designed for interchangeable, secure, and low-power IoT applications. It has a Cortex-M0+ microcontroller, WiFi+Bluetooth, NFC, and a cryptographic coprocessor. The board is equipped with a variety of peripherals, including a 6-axis Inertial Measurement Unit (IMU), digital microphone, and locking connectors for general-purpose input/output (GPIO). Power is provided by a USB-C connector or from three 1.8-3.3VDC pin strips. Additionally, the board is equipped with communication protocols such as I2C, Serial Peripheral Interface (SPI), and USART, as well as built-in support for Arduino shields, including the Arduino Nano Connect (from Arduino).