The HID 1450 Flexsmart 8K DESFire contactless cards offer a high level of security for sensitive applications. These cards operate at a frequency of 13.56MHz and utilize a 26-bit format. They are compatible with all thermal transfer printers and support read-write functionality, making them ideal for multi-functional memory applications. Each pack contains 100 cards, each of which is the standard CR80 credit card size (86mm x 54mm).100 cards per pack13.56MHz frequencyCR80 credit-card size (86mm x 54mm)