1 Credit card can bind 2 ETCs. By querying the website of I Love Cards, we know that one credit card can bind five ETCs, but it should be noted that since ETCs follow the principle of "one car, one card, one standard", one car can only handle one ETC device, and one ETC device can only bind one bank card. Of course, if there are multiple cars in the customer's name, the customer can apply for multiple ETCs. Cars, etc., correspond to cards. It should also be noted that the vehicle information and binding card number cannot be changed at will, otherwise it will affect the equipment and lead to abnormal high-speed traffic.