That is an EMV (which stands for EuroPay, Mastercard, and Visa) microchip, which makes use of far more State-of-the-art technological know-how to retail outlet and transmit data anytime the card is “dipped” right into a POS terminal. You can find far more information on this, as well as see pictures https://deanlgyqf.ageeksblog.com/34993089/fascination-about-copyright-sites