Hitachi HDP725050GLA360 Firmware Versions VersionPrevalence GM4OA52A46.693% GM4OA5CA42.685% GM4OA50E4.81% GM4OA57A2.204% GM4OA56A1.804% GM4OA5BA1.202% GM4OA5FA0.401% GM4OA5KA0.2%