Micro USB

The very small USB port found on cellphones and other portable devices is a Micro-B socket. Considerably smaller than the USB Type B sockets on printers and scanners, the Micro-B socket is half the thickness of the Mini-B socket found on digital cameras. Micro-A plugs and Micro-AB sockets are the standard connectors for USB On the Go (see USB OTG). See USB 3.0 and USB.

The Smallest USB Socket

The cable that plugs into the USB 2.0 Micro-B socket on this smartphone has a Type A plug at the other end for the computer or AC charger. USB 3.0 Micro sockets accept a 2.0 Micro plug, but not vice versa.

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