POWER SPECSAC input, 100-240V, 50-60Hz (for worldwide use) , DC output 19.5V 9.23A 180W ,Connecter size 7.4mm×5.0mm, with central pin inside. Compatible ModelAlienware 13; Alienware 13 R2; Alienware 13 R3 Alienware 14; Alienware M14X Alienware 15; Alienware 15 R2; Alienware 15 R3; Alienware 15 R4 Alienware 17 R2; Alienware 17 R3; Alienware 17 R4; Alienware 17 R5 Alienware Alpha ASM100; Alienware Alpha ASM-R2 Alienware Area 51M Alienware M11X; Alienware M11X R2; Alienware M11X R3 Alienware M15 Alienware M17 Alienware M17X R4 Alienware X51 R2 Compatible P/NWW4XY; DW5G3; JVF3V; 74X5J; 45G4G; DA180PM111; FA180PM111; HA180PM181; ADP-180MB B; TW1P0; F0G4K; JVF3V; 331-1469; 331-7957; 330-1829; 330-1830; X408G; D232H; WRHKW; FA130PE1-00 Safety & Fast Charging Built-In safety protections, Multiple protections against short circuiting, overvoltage, overcurrent, and internal overheating.All of our product lines are put through rigorous quality control procedures to ens