GPK Systems Car Charger for IBM Lenovo Thinkpad X200 X201 X201s X301 92p1107 92p1108 Pa-1900-o8i Pa-1900-o8 20v 4.5a 90w Laptop Power Supply Cord Notebook Battery Charger Netbook Plug DC input: DC 11V - 16V; Output voltage: 20V; DC output: 4.5A Power: 90 Watt; Connector: Barrel w/ Center Pin Service & Support 1 year warranty Designed exclusively for use with the laptops 100% compatibility with the original