Feitian ePass FIDO2 USB-A Security Key A4B

Feitian ePass FIDO2 USB-A Security Key A4B

The FEITIAN ePass FIDO2 USB-A Security Key (A4B) is a compact hardware authentication device designed to provide strong, phishing-resistant authentication for compatible online accounts, applications and computer systems. Certified for FIDO2 and FIDO U2F, it enables passwordless and multi-factor authentication through a standard USB-A connection. The key is recognised as a standard HID device for driverless operation on compatible Windows, macOS, Linux and Chrome OS systems and also supports OATH-HOTP for compatible legacy authentication environments.

Key Features

• FIDO2 Certified: Supports modern passwordless and strong multi-factor authentication using the FIDO2 standard.
• FIDO U2F Support: Provides hardware-based second-factor authentication for compatible online accounts and applications.
• USB-A Interface: Connects directly to computers and other compatible devices equipped with a USB Type-A port.
• OATH-HOTP: Supports event-based one-time password authentication for compatible applications and legacy environments.
• Phishing-Resistant Authentication: FIDO authentication helps protect accounts against phishing and man-in-the-middle attacks.
• Secure Element: Incorporates dedicated security hardware for authentication operations.
• Driverless Operation: Recognised as a standard HID device and requires no dedicated driver on supported platforms.
• Touch Activation: Integrated touch button provides physical user-presence confirmation during authentication.
• Multi-Platform Support: Compatible with supported Windows, macOS, Linux and Chrome OS environments.
• Broad Service Compatibility: Works with compatible FIDO-enabled websites, applications and identity platforms.
• IP67 Water Resistance: Durable construction is rated IP67 for protection against dust and water ingress.
• Compact Design: Measures only 44 × 21 × 3mm and weighs approximately 2.7g.
• Keychain Friendly: Compact form factor makes the security key convenient to carry alongside everyday keys.

Authentication & Security

Connectivity & Compatibility

Technical Specifications

What's Included:

• 1 × FEITIAN ePass FIDO2 USB-A Security Key (A4B)

Please Note: The A4B is specifically the USB-A version of the FEITIAN ePass FIDO Security Key. FEITIAN's current store page also lists the K39 under the same product family, but the K39 uses USB-C. Authentication features depend on support from the operating system, browser, application or online service being used. This A4B model does not provide NFC connectivity.

The FEITIAN ePass FIDO2 USB-A Security Key (A4B) provides compact hardware-based authentication with FIDO2, FIDO U2F and OATH-HOTP support, helping organisations and individual users strengthen account security while retaining simple driverless USB-A operation across major desktop platforms.