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An External Hard Drive falls under the broader categories of Electronics and Computers, as well as more specific subcategories such as Computer Accessories. It is a portable data storage device that can be connected to a computer via various interfaces, including USB, FireWire, or eSATA, allowing for additional storage capacity beyond what is available on the internal hard drive. External Hard Drives come in various shapes and sizes, from small and compact to larger, more rugged designs built for durability and high-capacity storage. They are often used for backing up important files, transferring data between computers, or expanding a computer's storage capabilities. Some external hard drives also offer features such as encryption, password protection, and cloud backup options for added security and convenience. Overall, External Hard Drives serve as an essential tool for anyone looking to expand their computer's storage capacity, protect important files, or transfer data between devices with ease.