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External hard drives function identically to internal hard drives. The distinction is that external hard drives attach in a different way to a PC or laptop, usually by USB, and are portable. With that in mind, if you need to keep large files or a large amount of files on hand even when you’re away from your main system, then an external hard drive could be your solution. An external hard disk is also a very convenient way to transfer files from one desktop system to another.
The most popular use case for an external HDD is for backing up data. No matter how reliable an internal hard drive is, it can fail at any time. This is a reality for any component that is constantly in use. That’s why many users consistently back up important files on an external hard drive, which is used rarely. Additionally, external hard disks are not usually constantly attached to a system. This protects the backed up data from damage if the main system suffers an electrical overload, like from a power surge.
Storage expansion is also a popular reason for buying an external hard drive. Laptop users understand how difficult it can be to upgrade an internal HDD. Even PC users with a tower might want to save themselves the hassle of opening their computer case and adding or replacing their hard drive. In these situations, it makes sense to simply buy an external hard drive and be done with it. The best part is that if the user buys a new PC or laptop, he or she can simply attach the external hard drive to the new system and the data will be immediately available.
Finally, portability always has value. USB flash drives certainly have their place in the arsenal of any mobile warrior, but sometimes they just don’t have the capacity for everything a user needs to carry. There’s nothing like bringing 1TB of MP3s and videos to stay entertained on those long business trips.
Since external hard disks function the same way as internal hard drives, the same aspects should be considered. Depending on your needs, the main specifications you should look at are capacity and speed. Capacity will dictate how much the drive can hold, and speed will tell you how fast the data can be accessed. For mechanical drives, you should look at the RPMs.
Whatever your external storage needs are, Newegg has the HDD for you from popular manufacturers, like Western Digital, Seagate, HGST, and Toshiba. Find the external hard drive you need today!ternal hard drive.