Genuine Hp 19.5v 2.31a Ac adapter specification
Charger power: 45w
Power output: 19.5v 2.31a
Power input: 100-240v
Tip pin size: 4.5mm * 3.0mm (Blue with pin in centre)
Hp 45w charger p/n: 741727-001, PA-1450-32HE, NSTNN-LA35, 719309-001 and many more
Hp Ac adapter warranty: 12months

This is the new style 19.5v 2.31a power adapter from Hp which fits the new line of Hp notebooks, notebooks, Ultrabooks and TouchSmarts.