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. Plastic + alloy + copper material all copper plug-in inner and outer mold are finely made to ensure the transmission effect without interference and attenuation due to the adapter.