The Great Wall Cross-border Card of Bank of China doesn't support RMB for the time being, so it can't directly purchase foreign exchange. Therefore, all foreign currencies under this card are deposited at the counter, or the foreign exchange purchased by online banking, mobile banking, WeChat banking, smart counters and self-service terminals is transferred to the cross-border debit card.

debit cards cannot be overdrawn. The transfer card has the functions of transfer, cash deposit and withdrawal and consumption. Special card is a debit card used in a specific area and for special purposes (other than department stores, restaurants and entertainment industries), which has the functions of transferring money and depositing and withdrawing cash. Stored value card is a prepaid wallet debit card in which the bank transfers funds to the card for storage according to the cardholder's requirements, and directly deducts money from the card during the transaction. Extended information

Debit card is one of the most commonly used payment tools in e-commerce because of its ease of use and wide popularity. More than 2 million sales outlets around the world accept signature debit cards from some international brands.

the ease of use is one of the reasons why debit cards are becoming more and more popular. Debit card can not only save you the trouble of carrying cash, but also be convenient to use and pay quickly, and the monthly statement (or statement) can clearly show all transaction records.

Baidu encyclopedia-debit card