Dell Alienware Charger 19.5Vx12.31A-7.4mmx5.0mm-240 Round pin

A 19.5V 12.31A charger with a 7.4mm x 5.0mm round pin provides 240 Watts of power.
This is a very high-wattage charger used exclusively for Dell’s most powerful and demanding laptops,
such as mobile workstations and high-performance gaming machines.
Dell Precision Series: M4700, M4800, M6400, M6500, M6600, M6700, M6800, 7510, 7520, 7530, 7710, 7720, and 7730.
Dell Alienware Series: Alienware 15 (R1, R2, R3, R4), Alienware 17 (R1, R2, R3, R4, R5), and Alienware M15 (R1, R2).