Yubico YubiKey 5Ci Security Key - USB‑C + Lightning - Black

The Yubico YubiKey 5Ci is a dual‑connector hardware security key engineered for users who require strong, phishing‑resistant authentication across both USB‑C and Lightning devices. With broad compatibility spanning Windows, macOS, ChromeOS, Linux, and iOS, it enables fast, secure login through simple tap‑or‑plug interactions. Supporting the full multi‑protocol suite of the YubiKey 5 Series - including FIDO2/WebAuthn, U2F, Smart Card (PIV), OATH‑TOTP, OATH‑HOTP, Yubico OTP, OpenPGP, and more - it offers enterprise‑grade protection for accounts and identity. Crafted from durable glass‑fiber reinforced plastic and certified IP68, the YubiKey 5Ci withstands water, dust, and crushing force while requiring no batteries or network connection. Trusted by major tech companies and millions of users, it delivers fast, portable, and reliable passwordless and multi‑factor authentication across modern ecosystems.

• Designed as a USB‑C and Lightning key for secure authentication
• Supports FIDO2, U2F, OTP, OATH, PIV, and OpenPGP options
• Uses USB‑C or Lightning for immediate account verification
• Works with Windows, macOS, iOS, ChromeOS, and Linux
• Needs a USB‑C or Lightning port and supported services
• Rated IP68 for resistance to water, dust, and impacts