lenovo 90w ac adaptor for x1 carbon notebooks (uk/hk/singapore/saudi arabia)&lt;br /&gt;Get power when and where you need it with a spare genuine ThinkPad AC adaptor. Keep one in the office one at home and another in your carrying case for convenient access to power wherever a wall outlet is available. The ThinkPad 90W AC Adaptor for X1 Carbon offers the same specifications as the standard AC adaptor that ships with the ThinkPad X1 Carbon laptop.