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USB cables are wires used to connect devices with USB ports to computers, power sources, and other devices. They facilitate data transfer and charging between various electronic gadgets such as smartphones, tablets, digital cameras, external hard drives, printers, keyboards, and game controllers. These cables come in various lengths, materials, and connector types (e.g., Type-A, Type-B, Mini-USB, Micro-USB, USB-C) to cater to different devices' requirements. Some USB cables also offer additional features such as faster data transfer speeds or extra power delivery for charging high-capacity devices.