This 40 watt power supply FSP model FSP040-1ADF03A has a 120v input and outputs power at 12vDC and 3.3 amps. This power supply is passive so if you have a 12vDC device that needs 3.3 amps or less it should work. The physical architecture of the FSP FSP040-1ADF03A resembles that of a laptop power supply . In fact this power supply is used to power many smaller laptops that consume 40 watts or less power. The power cord for the FSP040-1ADF03A is a standard computer power cord. This is nice because if the cord ever shorts out it can be replaced quite easily and cheaply with athe standard computer power cord. Compatible part numbers are FSP040-1ADF03A, 9NA0400838, AD040-F03A-J25.