... .4mm /5mm pin inside 18.5V 3.5A ac adapter for HPInput 120-240V 50-60HzOutput:18.5V 3.5ATip diameter ... OmniBook 2000 Series 2000, 2510p, 2000CS, 2710p, 2000CT, 2210bHP Compaq NX Series nx6310, nx6315, nx6320, nx6325, nx7300, nx7400HP OmniBook 800 ... , 5500CT, 5000CTS, 5700, 5000VLHP OmniBook 300 Series 300HP Compaq Tablet PC TC4400HP Compaq NC Series NC2400, NC4400, NC6230, NC6320, NC6400, NC8430HP ...