Mackertop 20V 3.25A 65W Replacement Laptop Adapter Charger Compatible with Lenovo Yoga 13 Yoga 11S Yoga 2 Z505 Z580 K2450 K4450 K4350 K4350A X300S X301S X230S S230U S3 S5 X240 X240S 45N0251 Input: 100-240V 50-60Hz (for worldwide use); Output: 20V 3.25A, 65W Connector size: yellow (ref to the picture) Replace part number: ADLX65SLC2A, ADLX65SDC2A, ADLX65NDC3A, ADLX65NLC3A, ADLX65NCC3A, ADLX65NDC2A, ADLX65NLC2A, ADLX65NCC2A, 45N0489, 45N0358, 45N0254, 45N0328, 45N0334, 45N0336, 45N0358, 45N0478, 45N0480, 45N0497, 45N0256 Compatible models: Lenovo IdeaPad Yoga 13 Ultrabook, Lenovo ThinkPad E550 E555, Lenovo IdeaPad Yoga Series 11s 13 Warranty: 12 months warranty; Package: 1 x AC adapter