Specification:ac input: 100v ~ 240v, 50~ 60hz , dc output: 19.5v - 12.3a, 240w dell charger;connector:7.4mm x 5.0mm
compatible: dell alienware m17x, m17x r2,m17x r3, m17x r4 series, dell alienware m18x, m18x r2, dell alienware x51, m15x precision, dell precision m6400,m6500, m6600, m6700, m6800, m4800
240w power delivery charger passed rigorous test compliance standard. no more worries about damaging your device, it's fast and safe to provides you the best possible performance
safety & fast charging built-in safety protections, multiple protections against short circuiting, overvoltage, overcurrent, and internal overheating.