This PWM Motor Speed Regulator is a versatile unit that can control motor speed from 3V to 35V with a maximum current of 5A and power of 90W. The module is suitable for a variety of applications and has been manufactured in China to meet high-quality standards. The unit is sold as a single unit and does not come with any additional accessories. It has a stock availability of 184 units in the US and is an excellent option for those looking for a reliable and cost-effective motor speed controller.