Most HDDs contain circular, flat disks made of glass or metal called platters. A HDD uses moving electromechanical parts coated in magnetic material to read and write data. But first, what’s the difference? Hard Disk Drive (HDD) The internal mechanics of a hard disk drive | photo by Benjamin LehmanĪ hard disk drive is a data storage system used in most computers and servers. If you’re not sure which type of external drive you should use, we’ve broken down the pros and cons of both below. However, the SSD vs HDD debate has intensified in recent years as more affordable SSDs like the Sandisk Extreme PRO Portable SSD V2 have been released. Do you want an SSD or HDD? Hard disk drives (HDD) are more commonly used, while a solid-state drive (SSD) is generally smaller, faster, and more expensive. If you’re planning to use an external drive, there’s an important decision you have to make. Data storage is a contentious topic, and critical to a successful project workflow.
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