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USB Flash Drives, also known as thumb drives, are compact storage devices that use flash memory to store and transfer data between computers and other compatible devices. They are portable and do not require a separate power source, making them convenient for transporting and sharing files. In the hierarchy of Electronics, Computers, Netbooks, and Memory Cards, USB Flash Drives fall under the Memory Card category. They serve as a practical solution for expanding the storage capacity of devices such as netbooks and can be used to backup important data or transfer large files between computers without the need for network connectivity. Despite their small size, USB Flash Drives offer significant storage capacities and are available in various forms and designs to suit different user needs and preferences.