An external hard drive is a portable storage device that connects to a computer or other compatible device via a USB, Thunderbolt, or other interface. It allows users to store, backup, and transfer files, such as documents, photos, videos, and software, independently of the computer’s internal storage.
External hard drives come in various storage capacities, and they can be used for data backup, additional storage, or transferring large amounts of data between devices. They typically rely on power from the connected device or may have their own power supply for larger models.