Note: Designed for the slimq 150W and 240W desktop chargers with DC ports, it has an input port size of DC 5.5x2.5mm. Unique feature: This extender has boost circuit to meet the required output voltage and can power many USB C devices as long as the input power source has enough capacity. For example, if the DC input is 12V 6A, the extender can translate to PD3.0 and can provide 20V 3A to a MacBook Pro laptop running at 60W.