All models of ALIENWARE laptops are covered. DC Output Watt and Current:  Just make sure that the DC Output Power of the NEW adapter >=  The DC Output Power of your adapter that came with your laptop. So if you have a 150W adapter and you want to buy a new one to replace it,  the 150W one and the 150W+ ones will work,  while the 130W one may fail to charge your ALIENWARE laptop. You can find the DC output info written on the label of your current adapter and on the label of your laptop. DC Output Voltage: 19.5V  AC Input: 100-240V, 50/60Hz (World Widely Compatible)  Color: Black   Power Cord Cable: US plug( OR UK EU AU Plug, to fit the shipping address) A power cord cable will be provided for each adapter Here comes a list of ALIENWARE models, for your reference: Alienware Alpha & Alienware Steam MachineAlienware Alpha R2 & Alienware Steam Machine R2Alienware Area 51Alienware Area-51 ALXAlienware Area-51 R2Alienware Area-51 R4 and R5Alienware Area-51 Threadripper Edition R3 and R6Alienware AuroraAlienware Aurora ALXAlienware Aurora R2Alienware Aurora R3Alienware Aurora R4Alienware Aurora R5Alienware Aurora R6Alienware Aurora R7Alienware X51Alienware X51 R2Alienware X51 R3 Alienware 13Alienware 13 R2Alienware 13 R3Alienware 14Alienware 15Alienware 15 R2Alienware 15 R3Alienware 15 R4Alienware 17Alienware 17 R2Alienware 17 R3Alienware 17 R4Alienware 17 R5Alienware 18Alienware M11xAlienware M11x R2Alienware M11x R3Alienware M14xAlienware M14x R2Alienware M15xAlienware M17xAlienware M17x R2Alienware M17x R3Alienware M17x R4Alienware M18xAlienware M18x R2 Great Power Supply Cord  Brick AC Adapter Battery Charger Adaptateur Chargeur Ladegerät Adaptador Cargador Adattatore Caricabatterie Adaptor Laddare Lader Adaptér Nabíječka адаптер зарядное устройство sovitin Laturi Rumak Laadija Oplader töltő Προσαρμογέας Φορτιστής Carregador For Dell Alienware Laptop Notebook PC Computer