Yubico YubiKey 4 – USB-A, Two-Factor Authentication

Two-factor authentication made easy for hundreds of services!

YubiKey 4 is a USB device that you use in combination with your username/password to prove your identity. With a simple touch, YubiKey 4 protects access to computers, networks, and online services.

All-in-one configurable security key performs: smart card (PIV), Yubico OTP, FIDO U2F, OpenPGP, OATH-TOTP, OATH-HOTP, and Challenge-Response. Yubico offers free and open source tools to configure the YubiKey yourself.

Easier and safer than authenticator apps: No more reaching for your smartphone to re-type passcodes that you receive via SMS or from an authenticator app. Just plug in your YubiKey, tap, and it does the rest for you.

Works out of the box with hundreds of applications: Use it with popular services like Facebook, Gmail, GitHub, DropBox, Dashlane, LastPass, Salesforce, Duo, Docker, Centrify, and hundreds more. Configurable for computer login (Windows, Mac, Linux). Follow the instructions that each service provides, to register your YubiKey.

Using your YubiKey: Go to yubico.com/start for instructions on how to register your YubiKey with each service. Steps to enroll your YubiKey 4 may differ from service to service. Yubico has provided steps based on their own testing, and links to those services for full instructions.

USB Type A compatible: Plugs into USB Type A ports. Purchase adapters for devices that feature lightening or USB-C ports to perform one time passwords.

Extremely durable (IP67 class rating by IEC 60529): High quality, crush-resistant, and water-resistant.

Attaches to house and car keychains.

Manufactured in USA and Sweden with high security and quality in mind.

Product Features

  • Protect online accounts against unauthorized access by using two factor authentication with this security key.
  • Works with Gmail, Facebook, Dropbox, Twitter, Dashlane, LastPass and hundreds of other services
  • Durable, waterproof, and crush resistant
  • Fits USB-A computer ports and designed to fit on your keychain
  • Multi-protocol support: FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV), OpenPGP, Challenge-Response; Made in USA



  • Jeff

    Great device for secure two factor authentication – not for everyone This is an excellent device and I strongly recommend it if you use a password manager that supports it (Last Pass, Dashlane, etc). The benefit of this device with a Password Manager is you can enable two factor authentication to add a new device capable of signing into your account. In short, it doesn’t matter if someone knows you master password, they can’t add a device (computer capable accessing your account) unless the have they have a Yubikey.To add a phone or tablet that…

  • BrianHelp

    Great first level protection in regards to passwords The only product that is easy to implement for security as long as what ever your securing supports this key. But if you use a password manager this is excellent to help keep peace of mind in regards to all your passwords being extra secure. Plus you can secure an Operating system as well using yubico software. It’s a little tricky, there are easier programs out there to secure your OS with this key. This also is not the end all of security. If your using a laptop all the time I would…

  • Amazon Customer

    Good product and does what it’s suppose to do Good product and does what it’s suppose to do. Setting it up to work as a PIV smart card is a pain, simply due to Certificate Authority issues with EFS/Bitlocker; however, easily remedied using command-line instead of their PIV Manager GUI.Zero problems with U2F. Challenge-response with Windows Login is very, very easily bypassed, even with it enabled in Safe Mode, by simply creating a WinPE (Pre-installation Environment) bootable USB and modifying a registry string. When you…

Leave a Reply

Your email address will not be published. Required fields are marked *


This site uses Akismet to reduce spam. Learn how your comment data is processed.