Yubikey 5C NFC Security Key - Lot of (4). USB-C Interface only ~ will NOT fit legacy USB slots.
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Review of 'YubiKey 5C NFC', a physical security key equipped with USB Type-C and NFC that can be used on both smartphones and PCs - GIGAZINE
YubiKey 5C Vaultum City
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YubiKey 5C - Net Universe Shop
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YubiKey Onlineshop Schweiz - Offizieller Reseller von Yubico - YubiKey 5C NFC
Yubico's new USB-C security key with NFC could be the one key to unlock them all - The Verge
YubiKey 5C Nano - Net Universe Shop