There is no expiration date on the prepaid card of Shenzhen Development Bank. You can consult the bank:

Physical validity:

① The design life of magnetic stripe card is ten years;

② The design life of the chip card is thirty years.

Effective period of actual use:

(1) The magnetic stripe card is properly kept and can be used for three to five years;

(2) The chip card is properly kept and can be used for five to ten years.

Service effectiveness:

① The validity period of the savings card has been cancelled, and the card can be held for life without damage;

② Credit cards are generally valid for three to five years, with different brands in different periods. After the expiration, the bank will review and decide whether to extend it.