Super Power Supply AC / DC Laptop Adapter Cord for HP Elitebook 2170p 2540p 2560p 2570p 2760p 6930p 8440p 8460p 8460w 8470p 8470w 8540p 8540w 8560p 8560w 8570p 8570w 8760w 8770w ; 90 Watt Netbook Notebook Battery Plug Input: 110-220V Output: 19V 4.74A 90W Warranty: 1 Year Super Power Supply are manufactured and tested to match or exceed OEM products. Trademarked by Super Power Supply. Sold exclusively by Super Power Supply