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USB - Wikipedia
USB Explained: All the Different Types (and What They're Used for)
Front Page | USB-IF
USB (Universal Serial Bus): Everything You Need to Know - Lifewire
USB Decoded: All the Specs and Version Numbers | Tom's Hardware
What is USB (Universal Serial Bus)? Definition, Types, & More
What Is USB (Universal Serial Bus)? Meaning, Types, and Importance
USB Flash Drives / Data Storage: Electronics - amazon.com
USB | Definition, Meaning, & Facts | Britannica
USB hardware - Wikipedia