GPK 90w Power Adapter for Lenovo Thinkpad T400-6474-ep9 ; T400s-2823 ; T410-2518-x01 T410-2537-25u ; T410s-2901-a3u ; T420-4178-afu T420-4180-ncu T420-4180-pau T420-4236-63u ; T420s-4173-28u T420s-4173-lbu T420s-4174-2au ; T510-4314-7nu T510-4349-2pu T510-4384-2mu T510-4384-c83 T510-4384-gu7 T510-4384-w2y ; T520-4239-46u T520-4240-49u T520-4240-4au T520-4240-4eu T520-4242-29u T520-4243-29u Ac Adapter Power Cord Charger Input: 100 - 240 V (worldwide use) Output: 20V 4.5A 90 Watt Service & Support 1 year warranty Designed exclusively for use with the laptops 100% compatibility with the original Replacement power supply AC power adapter was tested to match and/or exceed original product at low price.