Small and portable: Easily fits on your keychain and requires no battery or network connectivity, its high quality body stands up to life's little dings. Highly Durable: 360° rotating metal cover, extremely secure and durable, usb security keys are tamper resistant, water resistant, and crush resistant. Provide low-cost and simple solution with high security. Work well with both USB-A and USB-C ports and Near Field Communication, the NFC tech means that instead of plugging it in, you can just tap the key against the right devices to activate the authentication. The Thetis Pro FIDO2 Security Key is an all-purpose multi-factor authentication security key that will provide passwordless protection, NFC compatibility, and HOTP with exclusive dual USB ports. Security Passwordless: FIDO2 certified which support U2F protocol with the latest Chrome on Windows,Linux, OS, Gmail, Facebook, Dropbox, GitHub,Two-Factor Authentication for protect.