The package contains 10 SLE4442 chip cardsStandard credit card size (CR80) and thickness (3.375" x 2.125", 30 million thick)HICO magnetic stripe: A stronger magnetic field makes our card more durable. When exposed to an external magnetic field, the data encoded on the strip is unlikely to be erased.The SLE4442 blank white PVC magnetic stripe card allows you to store relevant information in a convenient location, which can be accessed by simply swiping the card!256 bytes EEPROM organization，32-bit protected memory ，composition method The password is 3 bytes, that is, 24 bits. Generally, the initial password is '255255255', converted into hexadecimal to 6F, that is,'FFFFFF' The basic parameters of SLE5542 chip card: The SLE4442 chip card is a 256-byte logical encryption card, with read data, write data, data protection and password operation functions, compatible with SLE5542/FM4442/ISSI4442 ! 256 bytes EEPROM organization ! 32-bit protected memory composition method ! 3-byte user password, the number of incorrect passwords: 3 times. ! At least 100,000 erases and writes ! Temperature range: 0℃～70℃ ! At least 10 years of data retention ! Working voltage: 5V ! The password is 3 bytes, that is, 24 bits. Generally, the initial password is '255255255', converted into hexadecimal to 6F, that is,'FFFFFF' ! Reset response complies with 7816-3 standard Each card coating a film, which is different from other smart cards in the market. The film is designed to protect your printer head. These cards are perfect for use as credit cards, gift cards & photo ID cards. They are especially beneficial to have in bulk for use in corporate & retail professionals