Best for
Users operating on potentially compromised host workstations who require PIN entry directly on the hardware token.
OnlyKey
OnlyKey DUO
Hardware password manager and authentication token with physical 6-button keypad and auto-wipe brute force defense.
From $64.00
USD is authoritative · crypto amount locks at invoice creation
Verified selection · 12-month warranty
25 available
Why we selected it
Open-source firmware with community reproducible build verification.
Privacy considerations
Master secrets never leave the device; entered PIN is never exposed over the USB bus.
Shipping & warranty
Includes OnlyKey DUO token, protective silicone cap, and quick start setup guide.
Specifications
Keypad6 physical capacitive touch buttons for on-device PIN and slot selection
EnclosureDurable injection-molded water-resistant enclosure
ConnectorsDual connector design: full-size USB-A on one end, USB-C on the other
Password ManagerOffline storage for up to 24 credentials, usernames, OTP tokens, and complex passwords
Encryption EngineHardware-accelerated AES-256, RSA-2048, and ECC Curve25519
Two-Factor SupportFIDO2, FIDO U2F, Yubico OTP, TOTP, and Challenge-Response
Brute-Force ProtectionAutomatic hardware self-wipe upon 10 consecutive incorrect PIN attempts
Supporting documents
No additional documents are required for this product.
Related products
