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IntelliStation Z Pro 6221 Hard Disk Drive (HDD) StorageSCSI models10,000rpm SCSI HDDs 15,000rpm SCSI HDDTotal36.4GB 73.4GBInternal 18.2GB146.8GB 36.4GB 73.4GBStorage 1 (06P5751, (06P5752,(06P5750)32P0723) 3 32P0724) 3 (32P0725) (32P0784) (32P0785)36.4GBStandard on SCSI models54.6GB 1 - - - - -72.8GB 2 1 - - 1 -109.8GB - - 1 - - 1183.2GB - - 2 - - 2220.2GB 2 - - 3 - - 3293.6GB 2 - - - 2 - -440.4GB 2 - - - 3 - -This table does not represent all possible HDD configurations.1. Select a total storage row then add the quantity of HDDs from the column of the preferred HDD to the standard HDD.2. Requires replacement of the standard HDD.3. Mixing of Ultra160 and Ultra320 HDDs limits the bus to the lower rated performance.EIDE ModelsTotal7200RPM IDE HDDs 2Storage 1 (22P7157) (09N4207) (09N4226)Internal 40GB 60GB 80GB40GBStandard on EIDE models12 0G B(09N4231)80GB 1 - - -100GB - 1 - -160GB - - - 1200GB 3 - - 1 1240GB 3 - - - 2This table does not represent all possible HDD configurations. Total internal storage listed is within+/-0.2GB unless otherwise noted.1. Select a total storage row then add the quantity of HDDs from all columns to the standard HDD.2. Supports a maximum of four IDE devices including CD-ROM drives, HDDs and IDE tape drives.Neither of the standard two-drop IDE cables is long enough for attachment to both an IDE HDD andan IDE device installed in either removable media bay.3. Requires replacing the standard HDD.30