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Makerspot USB Hub » Raspberry Pi Geek
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7-Port USB Hub For Raspberry Pi - Raspberry Pi Spy
Raspberry Pi USB-GPIO OS X and FreeBSD · Ben Lavery-Griffiths
gpio - Can you hot-plug a USB to TTL Serial Cable to the Raspberry Pi? - Raspberry Pi Stack Exchange
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Raspberry Pi Model B+ adds USB ports, expansion pins
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Projects | Computer coding for kids and teens | Raspberry Pi
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