The HID 2004 iCLASS 32K smart cards with 16k/16+16k/1 application areas utilize iClass technology to ensure secure data transfer, authentication, and provide a spacious 64-bit read/write card capacity. These high-quality cards come with a lifetime warranty and allow secure file separation for up to 16 application areas. Pack of 100 cards CR80 card size (86mm x 54mm) Compatible with thermal and direct-to-card printers