ePass FIDO Security Key A4B USB-A
π ePass FIDO Security Key A4B USB-A β Buy ePass FIDO USB-A (A4B) β Secure FIDO U2F & FIDO2 USB Security Key
Trusted ePass FIDO Security Key A4B USB-A FIDO U2F & FIDO2 certified security key-Identified as a standard HID device for strong prevention from phishing and Man-In-The-Middle attack
The ePass FIDO USB-A (A4B) is a hardware security key from Aftindia β a compact USB-A device that provides strong two-factor and passwordless authentication. It supports FIDO U2F and FIDO2 / WebAuthn standards, enabling secure, phishing-resistant login for your online accounts.
Unlike conventional authentication methods (SMS codes, app-based OTP), the ePass FIDO key keeps cryptographic credentials inside a secure element, meaning your private keys never leave the device β offering robust protection against credential theft, man-in-the-middle attacks, and phishing.

π Key Features & Benefits of ePass FIDO Security Key A4B USB-A
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FIDO U2F & FIDO2 Certified β Complies with global open standards for authentication and passwordless sign-in.
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USB-A Interface β Easy plug-and-play compatibility with virtually all desktops and laptops supporting standard USB ports.
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Smart-Card Secure Element Inside β Private keys are stored securely inside the device, ensuring high-assurance security for credentials.
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Protection Against Phishing & MITM Attacks β Cryptographic authentication instead of shared secrets makes login far more secure.
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OTP Support (HOTP / TOTP) β Legacy compatibility for applications or services that still require OTPs, offering flexibility beyond FIDO protocols.
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One Authenticator, Multiple Accounts β Use a single ePass FIDO key for Gmail, Facebook, Dropbox, GitHub, Salesforce, and any FIDO-compatible site β ideal for personal and business use.
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Durable, Compact & Portable β Small enough to fit on a keychain yet rugged for daily use, making security convenient wherever you go.
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Cross-Platform Compatibility β Works with Chrome OS, Windows, macOS, Linux β and across all major browsers and services supporting FIDO.
π§° Product information & Specifications at a ePass FIDO Security Key A4B USB-A
| Specification | Detail |
|---|---|
| Interface | USB-A |
| Protocols Supported | FIDO U2F, FIDO2 / WebAuthn, HOTP / TOTP |
| Secure Element | Smart-card chip for key storage |
| Compatibility | Windows, macOS, Linux, Chrome OS + all FIDO-compliant browsers & services |
| Use Cases | Multi-account login, cloud services, enterprise SSO, legacy OTP fallback |
| Durability & Portability | Compact, rugged design β ideal for keychain or travel |
| Use-case Flexibility | Works as 2FA, MFA, or passwordless authenticator across services |
π‘ Who Should Use This Key?
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Individuals wanting strong protection for Gmail, social media, cloud storage, developer accounts
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Small business / startups securing admin panels, cloud accounts, or team accounts
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Enterprises / IT admins enforcing strong authentication across employee workstations or remote teams
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Developers & security-minded users who prefer hardware-based authentication over password-based or app-based methods
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Anyone concerned about phishing, account take-over, or credential theft
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π£ Call to Action?
Secure your digital life today β choose the ePass FIDO USB-A (A4B) Security Key and enjoy phishing-resistant, hardware-backed authentication across your accounts. A single, durable security key gives you multi-account protection, cross-platform compatibility, and peace of mind.
π¦ Whatβs Included
- 1Γ OTP c100 Token Hardware Authentication (I34-C100 casing)
- Instruction Manual
- 1-Year Warranty
Bulk Orders: For orders above 500 units, contact our sales team for custom pricing.
βοΈ Setup Guide
For detailed setup and integration instructions, visit our OTP C100 Setup Guide.
π Seed Delivery & Encoding
- Default Delivery: OTP seed files sent via email
- Format Options: Hex / Plaintext (default), PSKC
- Custom Seed Email: Add custom email in order notes
π¨ Custom Branding Available
Want your logo on the token? We offer custom branding and packaging for bulk orders. Contact us now to personalize your OTP tokens.
π Buy OTP C100 Token Now β Affordable & Secure Authentication
Price: βΉ[2200] (inc. GST)
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In Stock of feitian otp c100 hotp tokens
π Fast Shipping All Over India
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π FAQ β Hardware OTP C100 Token Authentication
βWhat is an OTP C100 token?
A small hardware device that generates a secure, event-based one-time password (HOTP) used for user authentication.
βDo I need to install any software?
No. The OTP C100 token is a zero-footprint deviceβno software installation is required.
βHow long does the battery last?
The built-in battery lasts between 3 to 5 years, depending on usage.
βIs it compatible with Duo and ESET?
Yes. The device is compatible with Duo Security, ESET, PingID, and other major authentication platforms.
π How Does OTP c100 Work (HOTP Token)
- Press the Button β Each press increases an internal counter.
- Generates OTP β Uses a secure secret + counter via HOTP algorithm.
- Displays Code β A one-time password (OTP) appears on the LCD.
- User Enters OTP β The code is used to log in.
- Server Verifies β Server checks the code; if it matches, access is granted.
β No internet needed, OATH-compliant, and phishing-resistant.

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