... :1.7mmExternal diameter: 4.8mm Compatible laptop models: HP/COMPAQ P/N: 325112-001, 324816-003, 324816 ... DM325P, NX9000, NX9005, NX9010, PCn1050v, PCnx9000, nx9005, nx9010HP Pavilion D Series:DA720AV, DA723AV, DA726AV, DA731AV, DA732AV, DB385A, DB386A, DB395A ... ZE5170, ZE5185, ZE5200, ZE5279, ZE5300, ZE5395US, ZE5478CL, ZE5490US, HP Pavilion ZE5000 ZE5100 ZE5200 ZE5300 ZE5400 ZE5500 ZE5600 ZE5700 Series ...