Akasa ak cb002 pwm splitter smart fan cable akasa ak cb002 p this pwm splitter from akasa is a smart fan cable which has been designed to allow the connection of up to three pwm fans to the speed control of your motherboard the speed of the cpu fan is determined via a fan connection and is transmitted to the motherboard speed and associated background noise of all connected fans e g additional casing blowers are configured by pwm all connectors have been labelled for easy connection