Firmwares Hitachi HTS545050B9A300 VersionPrevalence PB4OC64G34.975% PB4OC60F33.498% PB4OC66G11.33% PB4OCA1G8.867% PB4ZC61H4.926% PB4OC60N3.448% PB4ZC6ZH2.463% PB4OC60S0.493%