BTI AC Adapter for Lenovo Laptop Computer - GA-20170LENOVO-BTI

BTI Model GA-20170LENOVO-BTI 20V 8.5A AC Adapter for E440, E450, E455, E540, E550, E550C, E555, IDEAPAD Y40-70, IDEAPAD Y50-70, IDEAPAD Y50-70AM-IFI, IDEAPAD Y700, IDEAPAD Y70-70, IDEAPAD Z710, L450, MULTIMODE- THINKPAD HELIX 1ST GEN, P50, P51, P70, S431, S440, S531, S540, T431S, T440, T440P, T440S, T450, T450S, T540P, T550, THINKPAD, THINKPAD 11E 1ST GEN AMD WINDOWS, THINKPAD 11E 1ST GEN CHROMEBOOK, THINKPAD 11E 1ST GEN INTEL WINDOWS, THINKPAD 11E 2ND GENERATION INTEL WINDOWS, THINKPAD P73, W540, W550S, X1 CARBON 3RD GEN, X240, X240S, X250, YOGA 12 S1, YOGA 14 S3, YOGA 15 S5