About this item Safety First: This product is certified by UL as its premium quality and safety system have passed UL's rigorous tests. Flawless Compatibility: Compatible with ThinkPad X1 Carbon 5th 6th 7th 8th 9th 10th 11th 12th 13th Gen, Fit for X1 Yoga 2nd 3rd 4th 5th 6th 7th 8th Gen, Fit for X1 Tablet 2nd 3rd Gen Laptop - It will not work properly if your device requires over 65W. Connector Type: USB Type C Connector (Not Square Tip Connector) Fast Charging Supported: The advanced PD (Power Delivery) technology allows this charger to charge your device fast - we provide high charging efficiency so none of your important tasks would get delayed or restrained because of slow charging. (ONLY PD-enabled devices will have fast charging support. Devices without PD technology will have regular charging speed) Output & Wattage: 20V-3.25A 65W Dimensions: 4.21 x 1.85 x 1.22 inches