Hi all

Capacity of a hard disk drive is usually quoted in gigabytes. Some older HDDs quoted their smaller capacities in megabytes.

The physical size of a hard disk drive is quoted in inches.

The majority of HDDs used in desktops today are 3.5 inches wide, while the majority of those used in laptops are 2.5 inches wide. As of early 2007, manufacturers have started selling SATA and SAS 2.5 inch drives for use in servers and desktops.

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