The U-Blox NINA-B312-02B is a Bluetooth Module with the IEEE 802.15.1 standard. It is designed for low power applications like Bluetooth Low Energy, Bluetooth Mesh, and Thread. It supports Bluetooth 5.1 features like 2 Mbps PHY for greater data throughput. It also features a low power 66-MHz Arm Cortex-M4F microcontroller with a radio through a dedicated high-speed SPI interface. The module also has an integrated 2.4 GHz chip antenna and features high sensitivity receiver that gives it an extended link range and robust connections. The module comes with 64KB SRAM and a wide variety of interfaces including UART, I2C, SPI, USB, and PWM. The module is also CE, FCC, IC, and Bluetooth SIG certified, giving it the ability to be used in professional wireless applications.