Specifications:Power: - Output Voltage: 20 V- Power Plug: Rectangular Plug With A Pin In The Middle. Outer Diameter 11.0 X 4.5 Mm, Length 12 MmCompatibility: - Lenovo B40, B40-30, B40-45, B40-70, B40- more→80, B50, B50-30, B50-70, B51-35, B51-80, B5400, B70-80, B71-80, E10-30, E31-70, E31-80, E40-30, E40-70, G40, G40-30, G40-45, G40-70, G40-70m, G405, G50, G50-30, G50-45, G50-70, G50-70 80dy, G50-70m, G50-80, G505, G505 80aa, G505g50-70, G70-80, M41-80, M4400, M4400s, M490s, M490s 6276, N20 Chromebook, N20p Chromebook, N40, N50, S20 Touch, S20-30, S210, S41, S41-70, S41-75, Z50-70, Z50-70 80e7, Seria Chrome N20, N20p, Seria Chromebook N20, N20p, Seria Edge 15, Seria Flex 10, 14, 14d, Seria Flex 3 …