The YubiKey -- COMPARISON OF VERSIONS

COMPARISON OF YUBIKEY VERSIONS

	BASIC STANDARD & NANO	BASIC EDGE & EDGE-N	PREMIUM NEO & NEO-N	FIDO U2F SPECIAL SECURITY KEY
PRICE – SINGLE QUANTITY	$25	$30	$50	$18
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Description	Our most basic YubiKeys deliver a one-time password  with a simple touch of a button. No SMS-like passcodes to retype, no client software or drivers.	YubiKey Edge supports one-time password and FIDO U2F, for plug-n-play use with a broad range of applications.	Our premium YubiKeys support one-time password, smart card, and FIDO U2F. The YubiKey NEO offers both contact (USB) and contactless (NFC, MIFARE) communications.	Designed to only support the emerging authentication standard FIDO U2F.
Size
Form Factor & Dimensions	USB KEY: 18mm x 45mm x 3mm, 3g Mini USB KEY: 12mm x 13mm x 3mm, 1g	USB KEY: 18mm x 45mm x 3mm, 3g Mini USB KEY: 12mm x 13mm x 3mm, 1g	USB KEY: 18mm x 45mm x 3mm, 3g Mini USB KEY: 12mm x 13mm x 3mm, 1g	USB KEY: 18mm x 45mm x 3mm, 3g
Security Protocols/Specifications
SECURE STATIC PASSWORDS
YUBIKEY OTP
OATH – HOTP (EVENT)
OATH – TOTP (TIME)
PIV-Compliant Smart Card
OpenPGP
FIDO U2F (Universal Second Factor)
Secure Element
Top Applications
Everywhere I type a standard password?
Google Accounts Compatible (U2F)
SalesForce.com Compatible (OTP)
LastPass
Communications Support
USB
NFC (Near Field Communication)
Device Type
HID Keyboard
CCID Smart Card
FIDO U2F (Universal Second Factor) HID device
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OATH-TOTP requires a helper app, YubiTOTP; NFC is included on the larger, keychain form factor of the YubiKey NEO, however NFC is NOT included on the smaller form factor, the YubiKey NEO-n.

Also see bundled products such as LastPass subscriptions with YubiKeys and Password Safe subscriptions with YubiKeys, and special products such as YubiKey VIP for Symantec and YubiHSM.