The chip of the Lightning connector provided by Apple. After the finished product should be certified by Apple. Of course, non-certified Lightning connector, USB Type-C connector, and USB Micro connector would be customized. The wire is made up of 118 tinned copper wires. From the inner to outside covered with aluminum foil, copper wire mesh, PVC, outermost is nylon braided.TPE joint, aluminum alloy one-piece connector shell.