The Arm Cortex-M386+ MCU is a microcontroller unit based on Arm's Cortex-M architecture, designed and licensed by Arm Holdings, a British semiconductor and software design company. It serves industries such as industrial automation, consumer electronics, automotive, and IoT. The Cortex-M386+ offers high performance, low power consumption, and real-time processing capabilities, making it ideal for embedded systems. Arm Holdings partners with various manufacturers to produce and distribute these MCUs globally.