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How A Hard Drive Operates
The basic structure of hard drive design has changed very little in the last 55 Years. The hard drive contains a stack of rotating magnetic platters. When information is needed to be read or written the drive read head goes to that section of the disk and pulls the information as the disk spins. The storage space of a hard drive is measured in Gigabytes (GB) or Terabytes (TB) (1 Terabyte is 1000 Gigabytes). The RPM of a drive tells you how fast the platters are spinning in the drive. The common rotational speed for modern desktop hard drives is either 5900 or 7200RPM.
The drives we sell are always brand new SATA3 type drives. The sale of used hard drives as new have become very common in the market. Manufacturers now clearly put the manufacturing date of the drive on the face of the drive and all of the drives we sell will have a manufacturing date in the last few months.

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