Mini USB - Computer Definition
The small USB socket found on digital cameras, external hard drives, USB hubs and other equipment. The Mini-B plug and socket are all that remain of the USB Mini connectors after the Mini-A plug and Mini-AB socket were made obsolete for USB On-The-Go (see USB OTG). USB 2.0 uses Mini-B connectors, whereas USB 3.0 provides only Micro connectors. See USB 3.0 and USB.