About this item Input: AC 100-240V. Output: 19V, 2.37A (Max), 45W. The adapter connector size is 5.5 x 1.7mm, which is bigger than 3.0 x 1.0mm (please check the connector size photos). Before you buy it, please verify the connector size of your original adapter! Compatible Models: Aspire E15, E1, E3, E5, E14, E17, ES1, E1-531, E5-521, E5-553, E5-573, E5-573G, E5-575, E5-575-33BM, E5-576, E5-576-392H, E5-576G-5762, E5-774, ES1-512, Aspire 3, 5, A315, A315-21, A315-41, A315-41-R3RF, A315-51, A315-56, A515-52, A515-43-R19L, V15, V3, V5, V7, V5-571, R3, R3-471, R7, S3 Series. Compatible Models: Aspire One D150, D250, D255, D255E, D257, D260, D270, 521, 522, 531h, 532h, 533, 722, 725, 751h, 752, 753, 756, A110, A150, AOD150, AOD250, AOD255, AOD255E, AOD257, AOD260, AOD270, AO521, AO522, AO531h, AO532h, AO533, AO722, AO725, AO751h, AO752, AO753, AO756, AOA110, AOA150, KAV60, NAV50, NAV51, NAV70, PAV70, ZA3, ZE6, ZG8, ZH9, ZHG. Compatible Part Numbers: ADP-30JH B, ADP-40PH BB, ADP-40TH A, ADP