This adapter enables the ThinkPad X1 Carbon to be used with the Lenovo 90W ultra slim AC/DC combo adapter (combo adapter not included)

Take the ThinkPad X1 Carbon on the go with an adapter

DC Jack: 7.9x5.4mm (can plug in the 7.4x5.0mm)

Work for: ThinkPad x230s x240s S3 S5 G400 / G405 / G500 / G500S / G505 X300S ThinkPad X301S / X230S / S230U / S3 / S5 / X240 / X240S / T440 / T440P / T440S / ThinkPad T431 / L440 / L540 / T540P / E431 E531, Lenovo X1 Carbon Yoga 13 / Yoga 11S / Yoga 2 / Lenovo Z505 / Z580 / K2450 / K4450 / K4350 / K4350A / Lenovo V4400U / Z410 / Z505, Z510 / Z710 / S405 / S410 / S410P / Lenovo S500 / G490 G400 / G500 / V4400

Note: Please make sure your laptop can accept the power source and the correct volt, otherwise it will damage your laptop.