Genuine HP Power Adapter Charger Compatible with 11-v031nr ( 4YN77UA ) Chromebook

This is a genuine HP 19.5V 2.31A 45W smart power adapter with a 4.5mm x 3.0mm connector. HP laptops are very particular. Aftermarket adapters can damage the charging circuits on HP laptops. We strongly recommend you only use a genuine HP smart power adapter with your HP devices. The product number or product ID is unique, used to identify your HP devices. The condition is used, but it is good as new, just a lot cheaper.