Manufacturer: Lenovo 65W Product Name: Power Adapter Model Numbers: PA-1650-56LC, ADP-65KH B (Various models are available; it usually works if the output and plug size match.) Output: 20V 3.25A Plug Outer Diameter: Approximately 5.5mm, Inner Diameter: Approximately 2.5mm Compatible Models (Examples): Lenovo IdeaPad Z570 10243SU, Lenovo IdeaPad Z570 10243WU, Lenovo IdeaPad Z570 102496U, Lenovo IdeaPad Z570 10249LU, Lenovo IdeaPad Z570 10249QU, Lenovo IdeaPad Z570 10249UU, Lenovo IdeaPad Z570, Lenovo IdeaPad Z575 129922U, Lenovo IdeaPad Z575, Lenovo G560 G560e G565 G570 G580, etc. Product Condition: Used. Tested and working. Minor scratches and dirt. No returns accepted. Please feel free to ask any questions you may have. We have a large stock; discounts available for bulk purchases. Price reductions are difficult. Immediate purchase is okay. Photos are for reference (we use the same photos). There may be slight differences in scratches and dirt depending on the product, but we will ship a product of the same quality. Thank you for your understanding.