A:Answer Unfortunately, no, Alienware laptops are typically 130 W systems and depending on which model you have for example the Alienware area 51 MR two requires two, 130 W power supplies in order to fully function. If you found a cable to stick in the AC power port of your Alienware laptop. The circuitry on your machine side will detect that this power supply is not capable of providing the peak wattage necessary, and would not allow charging to commence.