Compatible Models Acer Aspire One 521, 522, 531, 531h, 532, 532h, 533, 722, 725, 751h, 756, A110, A150, D150, D250, D255, Acer Extensa 4120, 4230, 4420, 4620, 4620Z, 5220, 5230, 5230E, 5235, Acer Travel Mate 2310, 2420, 3270, 4720, 4730, 5330, 5520, 5530, 5720, 5730, 6291, 6292 models Pin Size 5.5mm x 1.7mm Pin Type Small Watt 65W Adapter Output Power 19V / 3.42A Warranty 1 Year from Acer Service Center