There is no difference in appearance between the supplementary card and the main card except the account number and name.

the difference between the main card and the supplementary card:

1. Like the main card, the supplementary card also has an annual fee, which is generally about half of the annual fee of the main card. Like the main card, the annual fee of most supplementary cards can be reduced or exempted by spending a certain number of times or a certain amount.

2. The supplementary card must use the credit line with the main card, and the credit line of the supplementary card cannot exceed that of the main card.

3. The loss reporting of the main card does not affect the use of the supplementary card: except for the credit line, the main card and the supplementary card can basically be regarded as two independent cards, and the use of the supplementary card will not be affected after the loss reporting of the main card.

extended information:

the supplementary card is relative to the main card.

each cardholder who opens the main credit card can apply for a supplementary card for a natural person with civil capacity, or a natural person with limited civil capacity who is over 13 years old (if the applicant for the supplementary card is under 18 years old, he must obtain the consent of his legal representative).

Reference: Supplementary Card Baidu Encyclopedia.