This mini DC-DC boost step-up converter module is designed to convert input voltages of 2.5V to 5V into output voltages of 5V, 8V, 9V, or 12V. It features an adjustable output voltage, wide input voltage range, and versatile output capabilities. The module is suitable for use with lithium batteries and has a default output voltage of 12V. It also includes an LED indicator that consumes approximately 1mA of power. The product size is 22 x 10 x 3mm and it is made for use in computer applications.