Meet the YubiKey 4 Series – Two Factor Authentication Made Easy

All-in-one configurable security key

With a simple touch, the YubiKey protects access to computers, networks, and online services. Touch to trigger FIDO U2F, smart card (PIV), Yubico OTP, Code Signing, OpenPGP, OATH-TOTP, OATH-HOTP, and Challenge-Response.

Easier and safer than authenticator apps

No more reaching for your smartphone, or re-typing passcodes. Just plug in your YubiKey, tap, and it does the rest for you.

Works with hundreds of services

Designed to work off-the-shelf, the YubiKey works with Facebook, Gmail, GitHub, Dropbox, Dashlane, LastPass, Salesforce, Duo, Docker, Centrify, and many more services.


YubiKey 4 | $40
Best Seller! 4th Generation multi-protocol authentication device.


YubiKey 4 Nano | $50
Sleek minimalist design! Same features as YubiKey 4 and YubiKey 4C, but designed to stay inside the USB port.


YubiKey 4C | $50
Includes all the functionality of YubiKey 4. Designed for devices featuring USB-C ports.


YubiKey 4C Nano | $60
NEW in 2017, compact! Same features as YubiKey 4 Nano, YubiKey 4, and YubiKey 4C, ultra-slim USB-C form factor.

Choice of Form Factor

  • All YubiKey 4 form factors include the same functionality
  • The original YubiKey 4 features a durable USB-A body designed for keychains so it goes everywhere you do — just like your keys
  • YubiKey 4 Nano features a slim USB-A form factor for semi-permanent installation and convenience
  • YubiKey 4C Nano features a ultra-slim USB-C form factor in the latest Mac, PC, & Android computing devices.

Core Features

  • Secure: Prevents unauthorized access by requiring the physical presence of the key to login on that device
  • Easy to use: Plug it in and touch the gold button or edge; no codes to type or apps to install
  • Affordable: The same YubiKey can be used with nearly unlimited services, and prices starts at just US$40 per unit
  • Everywhere: Use it on Microsoft Windows, Mac OS X, Linux, and Chrome OS for Chromebooks
  • Convenient: Fits nicely on a keychain, in a wallet, or inside a USB port
  • Easy to set up: Users self-provision their YubiKey
  • Manufactured in USA and Sweden with high security and quality

Special Features

  • Works on Microsoft Windows, Mac OS X, Linux operating systems, and on major browsers
  • Hardware secure elements guard your encryption keys
  • RSA 4096 for OpenPGP
  • Support for PKCS#11

Using your YubiKey

Go to yubico.com/start for instructions on how to set up your YubiKey with each service. Steps to enroll your YubiKey may differ from service to service.

Compare YubiKey models