This laptop AC adapter has a 4.5 mm diameter plug tip with a center pin inside (check the 3rd picture) Extra Long Power Cord: 6 ft. UL listed 3-prong AC power cord + 6 ft. DC power cord It replaces MSI 240W, 230W, 200W, 180W charger, it does NOT replace MSI 280W, 300W, 330W adapter