Lenovo ThinkPad 230W Slim Tip AC Adapter ( 4X20E75111 , Lenovo Original Packaging) for All Slim Tip Connection Models Lenovo ThinkPad Slim Tip 230W AC Adapter (lenovo p/n - 4x20e75111) for All Slim Tip Connection Models In The Original Lenovo Factory Sealed Retail Packaging. Compatible With: T431s,T440,T440p,T440s,T450,T450s,T460,T460p,T460s,T470,T470p,T540p,T550,T560,T570,TP25.a Compatible With; W550s, X1 Carbon (2nd Gen), X1 Carbon (3rd Gen) , X1 Carbon (4th Gen) , X1 Yoga (1st Gen) , X240,X240s ,X250,X260,P40 Yoga,P50,P50s,P51,P51s,P70,P71. Compatibility With; E440,E450,E455,E460,E465,E470,E475,E540,E550,E550c,E555,E560,E560p,E565,E570,E570p,E575,S1 Yoga 12, S3 Yoga 14,S5 Yoga 15,Yoga 14,Yoga 260,Yoga 460,L440,L450,L460,L540,L560,L570.