Hitachi HDP725050GLA360 Firmware Versions VersionPrevalence GM4OA52A47.182% GM4OA5CA42.38% GM4OA50E5.01% GM4OA57A2.296% GM4OA56A1.67% GM4OA5BA0.835% GM4OA5FA0.418% GM4OA5KA0.209%