OnlyKey is a hardware password manager, a two-factor security key, and a file encryption token. It can protect your accounts even if your computer or a website has been compromised. OnlyKey is open source, independently audited, and trusted.
OnlyKey FIDO2
4,290.00 UAH
Available on: at
Account Protection
OnlyKey combines a hardware password manager, a FIDO2 / U2F security key, and an encryption token in a single device.
The key securely stores passwords, one-time 2FA codes (TOTP), FIDO2 / U2F cryptographic keys, and challenge-response authentication data.
This data is never transmitted to the operating system.
Universal сompatibility
OnlyKey integrates seamlessly into your digital ecosystem: from Google accounts and social networks to cloud services, crypto platforms, and corporate systems.
One physical key replaces dozens of apps and login methods, enabling hardware-based authentication where passwords, SMS codes, or mobile 2FA apps were previously used.
Support for Crypto Exchanges and Web3 Services
OnlyKey FIDO2 can be used for hardware-based two-factor authentication (2FA) on many cryptocurrency exchanges and financial platforms. FIDO2 / U2F standards provide protection against phishing and SIM-swap attacks. This is a more reliable solution compared to SMS and mobile authenticators.
Reliable for Everyday Use
The device is protected against water and dust according to the IP68 standard and complies with MIL-STD-810G.
OnlyKey is resistant to physical tampering and designed for daily use.
No risk of data loss.
PIN Code and Anti-Tampering Protection
The PIN is entered directly on the device, not on the computer.
If the key is stolen, the data remains inaccessible, and after 10 incorrect attempts, all information is automatically erased.
This prevents brute-force and physical attacks.
Fast Login Without Passwords
OnlyKey can automatically enter your login and password when connected to a computer.
Simply press a button on the device — no need to remember complex combinations.
Supported systems: Windows, macOS, Linux, and ChromeOS.
Supported standards: FIDO2, U2F
2FA methods: FIDO2 / U2F, YubiKey OTP, TOTP (RFC 6238), Challenge-Response
Key storage type: hardware-based, inside a secure microcontroller
Phishing protection: yes (at the FIDO2 / U2F level)
Connection: USB
Controls: physical buttons on the device
Auto-type: login / password / OTP as an HID device
Driver requirements: none (HID)
Operating systems:
Windows/ macOS/ Linux/ ChromeOS
Browsers and services: all services supporting FIDO2 / U2F and standard 2FA mechanisms
Water resistance: IP68
Durability standard: MIL-STD-810G
Physical tamper protection: yes
Form factor: compact USB security key
Source code: open source
Configuration: via official manufacturer tools
Cloud services: not used
Standalone operation: yes
OnlyKey FIDO2 security key
FAQ
OnlyKey FIDO2 is a hardware security key that combines a password manager, a FIDO2 / U2F key, and a hardware 2FA token.
All critical data is stored inside the device and does not depend on the security of your computer or browser.
The device can store passwords, usernames, one-time TOTP codes, FIDO2 / U2F cryptographic keys, and challenge-response authentication data.
This data is never transmitted to the computer in plain text.
Even if the system is compromised, OnlyKey remains secure.
Passwords and keys are not stored in the OS and cannot be read by malware, as all operations are performed inside the device.
Access requires a PIN code entered directly on the device.
After 10 incorrect PIN attempts, all memory is automatically and permanently wiped.
Yes. Many cryptocurrency exchanges and financial services support hardware-based 2FA using FIDO2 / U2F standards. OnlyKey can be used as a more secure alternative to SMS and mobile authenticators, reducing the risk of phishing and SIM-swap attacks.
OnlyKey works with Windows, macOS, Linux, and ChromeOS.
Cloud services or constant internet connection are not required for basic functionality.
Official software is used for advanced configuration, but for login and authentication, OnlyKey can operate without third-party services or cloud synchronization.
OnlyKey offers open-source firmware, on-device PIN entry, and the ability to store passwords directly on the device.
This makes it a more versatile tool.
LWallet.com.ua is an online store in Ukraine that specializes in the sale of cryptocurrency storage devices and security keys. In our store the widest range of such goods in the country. We deliver to any city of Ukraine. We not only sell wallets, but also help to customize them, give advice. For all products we provide a guarantee of 1 year.
We give a manufacturer’s warranty and change any faulty device within a year.
We will help you set up your wallet in our office or remotely. If you have any questions about your devices, we’ll always advise you over the phone or even over Zoom.
We deliver to any city of Ukraine. When you check out the order, you will be able to choose the nearest point of issue to you.
Yes, you can pay the courier or at the point of issue when you receive it. You can also pay immediately by transferring to your bank account.
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Updating…
Денис М. (verified owner) –
Отличный ключ. 24 слота под пароли и отп, а также их комбинации. Отличный второй фактор для SSH.
После yubikey выглядит немного топорно в плане софта, но функциональность просто шикарная.
Доставили быстро. Планирую ещё один такой покупать для резерва, как появляться.
Дмитро –
Дякуємо за відгук.
Фёдор –
Покупал этот ключ месяцем ранее, храню в нем пару важных ключей, например пароль от KeePass. Очень удобно хранить важные пароли в безопасном месте.