USB Type A female to Type B male adapter allows you to convert a USB Type A male connector into a USB Type B male connector, or a USB Type B female connector into a USB Type A female connector. Each adapter is molded and fully shielded, preventing any unwanted EMI/RFI interference caused from office equipment. Please note that when using this adapter to connect multiple USB cables, make sure that you do not exceed the 16-foot recommended USB limit. You can use extender or repeater to extend your cable further.