... diameter:1.7mmExternal diameter: 4.8mm Compatible laptop models: HP/COMPAQ P/N: 325112-001, 324816-003, 324816 ... , DM657A, DM957A, DM958A, DM959A, DM960A, DM997A, DM998A, DN837AHP Omnibook XT Series:XT276, XT375, XT412, XT4345QV, XT5300, XT5366WM, XT537QV, ... ZE5170, ZE5185, ZE5200, ZE5279, ZE5300, ZE5395US, ZE5478CL, ZE5490US, HP Pavilion ZE5000 ZE5100 ZE5200 ZE5300 ZE5400 ZE5500 ZE5600 ZE5700 Series ...