Works with: Windows Log-In, Twitter, Google Accounts, Microsoft Accounts, Facebook, Salesforce, Zoho, Dropbox, DUO Security, Microsoft Azure Entra ID, Microsoft Active Directory, Coinbase, Bank of America, Okta, Ping Identity, eBay, and many more websites, applications, computers, laptops and devices that accept USB Security Keys. Interested in bulk orders? Reach out to our team at sales@ftsafe.us for volume discounts. Features The simplest, most effective way to protect your employees against account takeovers Delivers an intuitive user experience with the simplest security key set up, deployment, and use Interoperates out-of-the-box with hundreds of services that support U2F Supported Operating Systems: Chrome OS, Windows, Linux, Mac OS Maximum number of credentials: No Limit Communication Protocol: HID Interface: USB-C Model: K28E Slots: 1 OATH-HOTP/TOTP PIV Capabilities OPEN PGP FIDO: AES, ECDSA, SHA256 Warranty: This product comes with a 1-year warranty from the date of purchase.