The Arm Cortex-M43+ MCU is not a standalone brand but a microcontroller unit (MCU) core design developed by Arm Holdings, a British semiconductor and software design company. Arm's Cortex-M series, including the hypothetical Cortex-M43+, targets embedded systems in industries like industrial automation, automotive, consumer electronics, and IoT. These MCUs are licensed to chip manufacturers (e.g., STMicroelectronics, NXP) for integration into their products, offering features like real-time processing, energy efficiency, and scalability. While the Cortex-M43+ isn't a confirmed model (as of 2023), Arm's Cortex-M4 and M7 cores are widely used in industrial applications, such as motor control and sensor hubs, as referenced on distributor sites like Grainger and Radwell.