Hitachi HDP725050GLA360 Firmware Versions VersionPrevalence GM4OA52A46.881% GM4OA5CA42.857% GM4OA50E4.829% GM4OA57A2.213% GM4OA56A1.61% GM4OA5BA1.006% GM4OA5FA0.402% GM4OA5KA0.201%