Female DC5521 Plug To Three 4-Pin Fan Power Adapter Cable

This adapter cable allows you to power up to three (3) standard 3-pin or 4-pin computer fans from a DC power supply. The DC input measures 5.5mm x 2.1mm which is the most common barrel plug size, ensuring compatibility with a wide range of power supplies. Most computer fans require 12V for full speed operation but lower voltages like 5V and 9V can be used to achieve quieter operation.