Firmwares Hitachi HDP725050GLA360 VersionPrevalence GM4OA52A47.836% GM4OA5CA41.686% GM4OA50E5.467% GM4OA57A2.05% GM4OA56A1.822% GM4OA5BA0.683% GM4OA5KA0.228% GM4OA5FA0.228%