This Yubico Security Key NFC is a brand new, reliable hardware authentication device designed to keep your online accounts secure. Featuring a compact, durable keychain form factor, this unit is finished in a signature blue color.Key Features and Specifications:- Brand: Yubico- Model: Security Key NFC (Blue)- Connectivity: Dual connection options via USB-A and NFC (Near Field Communication)- Authentication Protocols: Supports FIDO2, FIDO U2F, and WebAuthn for robust protection- Compatibility: Works across Windows, macOS, Linux, Android, and iOS platforms- Origin: Manufactured in either the United States or SwedenThis single unit provides a simple, touch-based authentication method to replace vulnerable SMS or app-based codes. The key is designed for ease of use while ensuring your sensitive data remains protected with hardware-backed security.