This laptop AC adapter has a 7.4 x 5.0 mm (NOT 9.0 x 6.2 mm) diameter plug tip with a center pin inside (see picture 3) Extra Long Power Cord: 6 ft. UL listed 3-prong AC power cord + 6 ft. DC power cord It replaces the original 240W, 230W, 180W charger, it does NOT replace 280W, 300W, 330W adapter