3323V Dell 4TB 7200RPM SAS 12Gb/S 3.5-In Hard Drive

Dell 4TB 7200RPM SAS 12Gb/S 3.5-In Hard Drive. The rotational speed of a hard disk drive (HDD) refers to the speed at which the disk inside the drive spins. In the case of the Dell 4TB 7.2K RPM SAS-12GBPS 512N 3.5-inch HDD, the rotational speed is 7200 revolutions per minute (RPM). This means that the disk inside the drive completes 7200 full rotations in one minute.