Lenovo Accessory 4X20E75131 USB-C 45W AC Adapter Unit States/Japan/Taiwan Retail This item is compatible with : T470, T570, E570P , X270, X1 Carbon 5th Gen , X1 Yoga 2nd Gen , ThinkPad 13 (1st Gen) Chrome, ThinkPad 13 (1st Gen) Windows, ThinkPad 13 (2nd Gen) Windows. Lenovo USB-C 45W AC Adapter - US/JP/TW ( 4x20e75131 Retail Packaged and Factory Sealed). This connection is a USB Type C interface wall charger. 2 Prong power cord with USB Type C connection to laptop . 4x20e75131 45w , 0.42 lbs , 1.1 H x 2.4 W, x 2.9 D , Lenovo retail packaged 1 lbs .