DC 5.5*2.1mm DC Plug to Rectangle Female Charger Power Cable for Tablet & Laptop

Note: Please make sure your laptop can accept the power source and the correct volt・?otherwise it will be damaged your laptop.

Take the ThinkPad X1 Carbon on the go with an adapter.

DC plug : 5.5*2.1mm 

Rectangle Jack: 11.3*4.7mm