Hitachi HDP725050GLA360 Firmware Versions VersionPrevalence GM4OA52A47.034% GM4OA5CA42.373% GM4OA50E5.085% GM4OA57A2.331% GM4OA56A1.695% GM4OA5BA0.847% GM4OA5FA0.424% GM4OA5KA0.212%