Amazon.com: Tree.NB 20V 3.25A 65W Rectangle USB Tip Laptop AC Adapter for Lenovo Thinkpad T470 T470S T460 E531 E570 E560 L470 L460 L440 T440 T450 T540P X270 X250 X240 Laptop Charger with
IBM / Lenovo Thinkpad T440 - Genuine OEM Laptop Charger | AC Adapter
20V AC Charger Power Supply Adapter Converter Cable Cord for Lenovo ThinkPad T440 T440p T440s T540p, X1 Carbon, X140e, X240 Yellow Square Plug with Pin to 7.9*5.5mm Round Tip DC Jack -