Product Description: Please note that additional user setup is required to turn on U2F functionality. For more details, please head to yubi.co/unlockU2F. The YubiKey NEO has all the functionality of a standard YubiKey with the addition of NFC communication for access to mobile devices, Yubico SmartCard applets and Mifare Classic support. Special Features - Emits One Time Passwords (OTP) through both NFC (Near Field Communication) and USB interfaces - Mifare Classic, for legacy physical access control systems - Common Criteria certified bank grade authentication ICs - CCID compliant USB token, including secure element and JavaCard - First authentication device to comply with FIDO Universal 2nd Factor (U2F) requirements YubiKeys can be configured for use with Yubico One Time Password (OTP), OATH-HOTP, HMAC-SHA1 Challenge-Response and Static Password. A YubiKey can hold two independent configurations of any supported type, thus functioning in essence as two separate keys. Configuration Slot 1: Yubico OTP Slot 2: Blank Applets: OpenPGP, YubiOATH, PIV, FIDO U2F Notes Currently sold YubiKey NEOs do not support the development or management of JavaCard applets.