... .000MHZ,24.000MHZ,28.224MHZ 3. For Hard drive:23.040MHz,28.224MHz 4. For Optical drive: 33.8688MHz,16.9344MHz,18.432MHz ... : 27.000MHz,12.000MHz,24.576MHz. 6. For cameras and video cameras: 27.000MHz,54.000MHz,36.000MHz.36.000MHZFourth: Industrial ... control/tire pressure test/car audio, access control system, video telephone/video phone door, community intelligent control system and health care products ...