Product Description
Yubico's 4th Generation YubiKey is built on high-performance secure elements. It includes the same range of one-time password and public key authentication protocols as in the YubiKey NEO, excluding NFC, but with stronger public/private keys, faster crypto operations and the world's first touch-to-sign feature.

Core Yubikey Features
- Works instantly, no need to re-type passcodes from a device - replacing SMS texts, authenticator apps, legacy OTP tokens and similiar devices.

- Identifies as a USB keyboard, smart card and smart card reader - no client software or drivers need to be installed, no batteries, no moving parts - and works over USB

- Cursh-resistant and waterproof; YubiKey 4 is practically indestructible during normal use

- The keychain size weighs only 3g, and attaches to your keychain alongside your house and car keys

- Integration within minutes with free and open source server software

- Manufactured in USA and Sweden with high security and quality

Special YubiKey 4 Features

- Works on Microsoft WIndows, Mac OS X, Linux Operating Systems and on major browsers

- Supports multiple authentication protocols, including Yubico OTP, smart card (PIV) and FIDO U2F

- Hardware secure elements guard your encryption keys

- RSA 4096 for OpenPGP

- Support for PKCS#11