ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY ASTRID & HANNS-FRIEDER MICHLER / SCIENCE PHOTO LIBRARY
USB connecting plug. This is a "type A" universal serial bus (USB) connecting plug, which connects peripheral devices into a computer. USB became a standard in 1996, and is used for low-speed connections such as keyboards, mice, scanners and digital cameras. It transfers data at 12 Mbps (megabits per second) and can support a chain of up to 127 devices.
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