OTG是On-The-Go的缩写，是近年发展起来的技术，2001年12月18日由USB Implementers Forum公布，主要应用于各种不同的设备或移动设备间的联接，进行数据交换。特别是PDA、移动电话、消费类设备。改变如数码照相机、摄像机、打印机等设备间多种不同制式连接器，多达7种制式的存储卡间数据交换的不便。-OTG On-The-Go is the abbreviation of the technology developed in recent years, December 18, 2001 announced by the USB Implementers Forum, mainly used in a variety of devices or connections between mobile devices, for data exchange. In particular, PDA, mobile phones, consumer devices. Changes, such as digital cameras, camcorders, printers and other equipment between the different standard connectors, up to seven kinds of standard data exchange between the memory card the inconvenience.