Generally used for USB interface conversion, or two USB plug-in docking.. Plug and play, nickel plated interface, mini and compact.. USB 2.0 conversion interface, high-speed transmission, downward compatible with 2.0 and 1.1 devices, external hard disk, camera, HD display, digital camera and other USB 2.0 devices.. Inner and outer mold are finely made, without interference and attenuation due to the adapter.