UniFi® Access Card is a highly secure NFC smart card compatible with the UniFi Access system.The card data is encrypted with both AES-128 and with UniFi Access proprietary security mechanism. These additional security measures protect the card number from leaks and duplication. - Secure NFC card for use with UniFi Access solution.- Each pack includes 20 UA-Cards.- Format: ISO 7810 ID-1- Technology:ISO/IEC 14443 Type AMIFARE DESFire EV2UniFi Access Proprietary SecurityProtocol Features Product colour Black, White Weight & dimensions Weight 5 g Thickness 0.84 mm Height 54 mm Width 85.6 mm How to Install: Ubiquiti UniFi Access Hub and Readers Introducing: Ubiquiti UniFi Access (Reader Pro, Reader Lite, Access Hub, Mission Critical) [2021]