... CQ21325 Center pin diameter: 2.5mm Fit for laptop models:Compaq Presario: 1000, 1010, 1020, 1030, 1065, 1070, 1072, 1075, 1080, 1090 ... , 2581, 2585, 2590, 2591, 2592, 2594, 2596, 2597, 2598, 2599, 2700, 2701, 2710, 2715, 2720, 3000, 4060, NX9010 sell laptop DC ...