The YUBICO YubiKey 5 Nano FIPS USB-A (140-3) is a compact, FIPS 140-3 certified authentication key for secure access and two-factor authentication. Featuring a USB-A interface, it fits seamlessly into any keychain. It supports protocols like U2F, PIV, and OTP, providing hardware-based security for online accounts and networks. Ideal for businesses and individuals requiring enhanced protection.