Lenovo 57Y4608, ThinkPad Edge 13, 14, 15 ThinkPad L412, L512 ThinkPad SL300, SL400, SL410, SL500, SL510 ThinkPad..., 50 - 60 Hz, 345 g, 62 x 141 x 31 mm Lenovo 57Y4608. Compatible products: ThinkPad Edge 13, 14, 15 ThinkPad L412, L512 ThinkPad SL300, SL400, SL410, SL500, SL510 ThinkPad.... AC input frequency: 50 - 60 Hz. Weight: 345 g. Dimensions (WxDxH): 62 x 141 x 31 mm