FEATURES: Purpleleaf Adapter converts a regular compatible for Lenovo Thinkpad laptop charger WITH A PIN inside the tip connector to a rectangular type compatible for Lenovo Ideapad Yoga/ for Lenovo ThinkPad Carbon X1 charger.
Brand New,products are CE/FCC/RoHS certified, tested by manufacturer to match and/or exceed specifications of OEM products.
Connector:one side is 7.7x5.5mm female plug, another side is Square male plug for X1 Carbon Ultrabook
Length: 5.6 Inch.voltage:20V
Please make sure the Tip Connecter size of the ac adapter are identical to what your need before buying.