Firmwares Hitachi HDP725050GLA360 VersionPrevalence GM4OA52A47.534% GM4OA5CA41.928% GM4OA50E5.381% GM4OA57A2.242% GM4OA56A1.794% GM4OA5BA0.673% GM4OA5FA0.224% GM4OA5KA0.224%