Getting Started With Your System 9DrivesHard Drives up to four 3.5-inch internal SAS or SATA drives using oneof the following configurations:– one or two SATA drives using internal hard drive baysand integrated controller– one or two SAS drives using internal hard drive bays andcontroller expansion card– three SAS or SATA drives using internal hard drive bays,flex bay, and controller expansion card– four SAS or SATA drives using internal hard drive bays,flex bay, hard drive carrier, and controller expansion cardNOTE: Your hard drive configuration must consist of all SATAhard drives or all SAS hard drives.NOTE: If you decide to install a third hard drive in the flex bay,you may not install an internal diskette drive.NOTE: If you decide to install a fourth hard drive, see the DellSupport website at support.dell.com for information on harddrive cooling requirements.Diskette drive one optional 3.5-inch, 1.44-MBexternal optional USB 3.5-inch, 1.44-MBOptical drives up to two optional IDE CD, DVD, or combinationCD-RW/DVD drives (SATA drives when available)NOTE: DVD devices are data only.NOTE: A second optical drive may not be installedif a fourth hard drive is installed.external optional USB CDTape drive one optional internal half-height, 5.25-inch SCSI or IDE(for use in second 5.25-inch bay only) (SATA drive whenavailable)NOTE: A tape backup drive may not be installedif a fourth hard drive is installed.Flash drive external optional USB