This is a lot of 10 brand new OEM Lenovo AC/Standard power adapters/ chargers with a square tips. THEY have a voltage of 20V and an output current of 3.25A, works with 45 & 65 watt applications making them compatible with various Lenovo devices such as but not limited to....

ThinkPad X1 Carbon 2nd, 3rd, and 4th Generations, Thinkpad X1 Yoga 1st Generation, Yoga 2, 11, 11E, 12, 13, 730-15, L440, L450, L460, L470, L540, L560, L570, B40-30, B50-30, B50-35, B50-70, B5400, S431, S440, S531, S540, P40, Yoga P50S, P51S, W550S, HELIX Edge 2, S41-70, IdeaPad 300, Flex 2, Flex 3, Flex 14, G50, G50-45, G51-35, G500, T431s, T440, T440p, T440s, T450, T450s, T460, T460s, T470, T470s, T550, T560 & MANY MORE