USB is a universal, general interface standard for connecting peripheral devices to PCs.

Universal Serial Bus is a specification to stablish communication between devices and a host controller (usually personal computers). Though designed for personal computers, it has become commonplace on other devices such as smartphones, PDAs and video game consoles, and as a power cord.

USB devices are available with various connectors, cables and versions with increasing transfer rates.

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Basic trident USB Logo.

Credit: @nik