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USB - Wikipedia
USB Explained: All the Different Types (and What They're Used for)
USB (Universal Serial Bus): Everything You Need to Know - Lifewire
Amazon.co.uk: USB Flash Drives - USB Flash Drives / External …
USB hardware - Wikipedia
USB | Definition, Meaning, & Facts | Britannica
What is a USB Port and How Can You Use It? - Lifewire
Front Page | USB-IF
USB speeds, types and features explained - Tech Advisor
USB Decoded: All the Specs and Version Numbers | Tom's Hardware