The FEITIAN ePass FIDO-NFC Security Key adds FIDO U2F and FIDO2 authentication, plus HOTP and TOTP one-time passwords, to online account sign-in. The K9B model has USB-A and the K40 has USB-C; both support NFC for use with NFC-capable phones and other devices. FEITIAN lists compatibility with the latest Google Chrome and other FIDO-compliant applications, citing Gmail, Facebook, and Dropbox as examples. Over USB, the key is recognized as a HID device and needs no driver on Windows, macOS, or Linux. One key can protect unlimited accounts across multiple websites. It uses a smart-card secure element and JavaCard operating system, with documented algorithms including ECDSA, SHA256, AES, HMAC, and ECDH. FEITIAN identifies the K9 as FIDO U2F and FIDO2 certified. The K9 comparison table lists NFC, FIDO2, FIDO U2F, and OATH HOTP/TOTP, but not BLE or biometric capability. The listed K9B/K40 plan costs 35.00 USD per once.

Who it is for

This key suits people who want hardware-based FIDO sign-in or one-time passwords across online accounts. It can be used with NFC-capable mobile devices or over USB on listed desktop operating systems.

What is good

Supports FIDO U2F, FIDO2, HOTP, and TOTP.
Both USB models include NFC.
USB operation needs no driver on Windows, macOS, or Linux.
One key can protect unlimited accounts.
K9 is identified as FIDO U2F and FIDO2 certified.

What to know first

No biometric capability is listed.
The K9 comparison table shows no BLE.
K9B uses USB-A; K40 uses USB-C.

Verdict

The ePass FIDO-NFC offers several authentication methods, with USB and NFC connectivity. The listed K9B/K40 price is 35.00 USD per once, and the K9 comparison table does not list BLE or biometric capability.

FEITIAN ePass FIDO-NFC Security Key plans and pricing

All plans

ePass FIDO-NFC Security Key K9B/K40 $35 once $35.00 USB-A (K9B) or USB-C (K40) · NFC · FIDO U2F/FIDO2 · HOTP/TOTP ftsafe.com · 30 Sept 2026

Compared on security keys

Free plan: No
Paid from: 35 one-time
Authentication standards: FIDO U2F, FIDO2, OATH HOTP/TOTP
NFC support: Yes
Biometric unlock: No
USB connector: usb-a
Device management: vendor app
Operating systems: Chrome OS, Windows, Linux, macOS, iOS, Android

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The record

Authentication

The key provides FIDO U2F and FIDO2 authentication plus HOTP and TOTP one-time passwords.

Interfaces

K9B uses USB-A, K40 uses USB-C, and both models support NFC.

Browser compatibility

It works with the latest Google Chrome and other FIDO-compliant applications.

Example services

FEITIAN lists Gmail, Facebook and Dropbox as examples of compatible services.

Mobile use

The NFC interface supports registration and authentication with mobile phones and other devices that have an NFC sensor.

Driverless operation

The key is recognized as a HID device and needs no driver on Windows, macOS or Linux over USB.

Account capacity

A single key can protect unlimited accounts across multiple websites.

Security element

The product uses a smart-card secure element and JavaCard operating system.

Cryptography

The documented algorithms include ECDSA, SHA256, AES, HMAC and ECDH, with SHA256 and ECDSA on P-256 for FIDO U2F.

Certification

The K9 is identified as a FIDO U2F and FIDO2 certified security key.

Physical limits

The K9 comparison table shows NFC, FIDO2, FIDO U2F and OATH HOTP/TOTP, but no BLE or biometric capability.

Customization and support

FEITIAN offers casing, printing or laser engraving, and color customization, and directs customers to contact it for quotations and detailed information.

Target sectors

FEITIAN categorizes the product under financial, healthcare, government, enterprise, payment and PSD2 solutions.

Founded

1998