--- product_id: 502220760 title: "FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access" brand: "cryptnox" price: "$78.03" currency: USD in_stock: true reviews_count: 13 category: "Cryptnox" url: https://www.desertcart.us/products/502220760-fido2-security-key-with-mifare-desfire-nfc-smart-card-2fa store_origin: US region: United States of America --- # Dual NFC & Contact Interface FIDO2 v2.1 Certified 2FA/MFA Swiss-engineered Secure Design FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access **Brand:** cryptnox **Price:** $78.03 **Availability:** ✅ In Stock ## Summary > 🔒 Elevate your security game—because your digital and physical worlds deserve one smart key. ## Quick Answers - **What is this?** FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access by cryptnox - **How much does it cost?** $78.03 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/502220760-fido2-security-key-with-mifare-desfire-nfc-smart-card-2fa) ## Best For - cryptnox enthusiasts ## Why This Product - Trusted cryptnox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **One Card, Dual Power:** Combines digital authentication with AES-encrypted MIFARE DESFire EV2 building access—your office and online fortress in one sleek card. - • **Sleek Swiss Craftsmanship:** Engineered in Switzerland, backed by a 2-year warranty, and designed to fit your professional lifestyle with subtle elegance. - • **Unmatched Security, Zero Hassle:** FIDO2 v2.1 certified for passwordless & 2FA login on all major platforms—tap and go with no drivers needed. - • **Military-Grade Tamper Resistance:** Equipped with NXP JCOP 4 chip certified to Common Criteria EAL6+ and FIPS 140-2 Level 3 for bulletproof key storage. - • **Seamless Cross-Device Compatibility:** Works natively with iOS, Android, Windows, and MacOS via NFC or smartcard reader—no software installs, no fuss. ## Overview The Cryptnox FIDO2 Security Key is a Swiss-engineered smart card that merges FIDO2 v2.1 certified passwordless and two-factor authentication with AES-encrypted MIFARE DESFire EV2 building access. Featuring a tamper-resistant NXP JCOP 4 secure element certified to Common Criteria EAL6+ and FIPS 140-2 Level 3, it supports dual NFC and contact interfaces for seamless use across iOS, Android, Windows, and MacOS without any software installation. This sleek, battery-free card offers a unified solution for digital and physical security, backed by a 2-year warranty. ## Description Product Description The Cryptnox FIDO2 Smart Card The Cryptnox FIDO card is a certified FIDO2 authenticator device that enables highly secure authentication on websites through passwordless login (resident key) or as a second-factor authentication (2FA) with a single tap. The card can be used via NFC communication or connected to a computer via a smartcard reader without the need for any software or drivers to be installed. It is natively supported by browsers on most mobile and desktop operating systems (see list below). For use of the Cryptnox FIDO card on mobile operating systems such as IOS and Android, it is essential to look for the specific antenna NFC location on the Cryptnox website or in your mobile phone documentation. Typically, the NFC antenna is at the top of an iPhone and in the middle or middle top of an Android phone. Placing the card on the specific NFC location of the phone is crucial to ensure stable communication. For desktops, Windows is supported with a smartcard reader (contact or NFC). The availability of the FIDO standard features depends on the website's implementation and may differ. Typically, it is used for highly secure second-factor authentication (2FA). You can find information on the feature's availability in the settings or security section of your account. To use the device, it must be registered with your specific account by following the website's instructions. Examples of websites that implement the FIDO standard are Google, Facebook, Twitter, Dropbox, Outlook, and many more. You can use the Cryptnox FIDO card on these sites in all major browsers from your Android or iOS mobile phone. To use it from a browser on your Windows desktop or Apple MacOS, a card reader is required. The Cryptnox FIDO card can natively be used as a Security Key for second factor authentication with your iPhone and MacOS. A minimum of two cards is required, and this functionality is natively part of the operating system. No software or driver installation is required, and you can find instructions on the support pages of Apple by searching for "use security keys to sign in to your Apple ID" You can also have secure authentication on your Windows desktop if you have a Microsoft 365 Business Premium and a card reader. This functionality is also part of the Windows operating system, and no additional software is required. You can find instructions in Microsoft Support by searching for "Microsoft support set up a security key as your verification method." NFC area 1 Antennae can be found on the back side of the phone, in the top area. Applicable to the following phones iPhone 14 iPhone 13 Samsung Galaxy Fold NFC area 2 Antennae can be found on the back side of the phone, in the middle section. Applicable to the following phones Samsung galaxy S23 GooglePixel 6a GooglePixel 7 Pro Fido2 Level 1 Certification The Cryptnox FIDO card is Fido2 Level 1 certified. Cryptnox has been a member of the Fido Alliance at the associate level since 2020. Common Criteria EAL6+ The chipset on which the Cryptnox firmware is running has been certified to Common Criteria EAL6+. NIST FIPS 140-2 The cryptographic module of the device has been certified to FIPS 140-2 Level 3. Review: Great Product I recommend - Amazing works as described and Very Easy To setup and use and packaging was easy to open and the cards are very well made Review: Works perfectly on iPhone, subtle. - Worked perfectly with my iPhone. I like the plain white card. Nice low key s2fa security. ## Features - HARDWARE 2FA AND MFA: FIDO Alliance Certified FIDO2 v2.1 with CTAP2 plus legacy U2F and CTAP1 for strong two-factor login and passwordless sign-in on services that support security keys - BUILDING ACCESS ON ONE CARD: MIFARE DESFire EV2 4K applet with AES encryption adds office door and physical access control alongside digital authentication - CERTIFIED SECURE ELEMENT: NXP JCOP 4 P71D321 chip certified to Common Criteria EAL 6 plus augmented and FIPS 140-2 Level 3 CMVP 3746 for tamper-resistant key storage - DUAL INTERFACE SMART CARD: Contactless NFC ISO 14443 plus ISO 7816 contact reader support in an ISO 7810 ID-1 format that is passive and needs no battery - SWISS ENGINEERED DESIGN: Built by Cryptnox as a single card for authentication and access control and backed by a 2 year warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B384JCP8 | | Best Sellers Rank | 33,477 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 356 in External Memory Card Readers | | Brand Name | Cryptnox | | Colour | Black | | Country Of Origin | Poland | | Customer Reviews | 4.3 out of 5 stars 293 Reviews | | Embellishment Feature | metallic hardware | | Form Factor | Smart Card | | Included Components | Cryptnox Fido card | | Item Weight | 5 Grams | | Leather Type | Faux Leather | | Manufacturer | Cryptnox SA | | Manufacturer Part Number | 7649992538073 | | Manufacturer Warranty Description | 2-year limited warranty; see Cryptnox warranty certificate. Does not affect your statutory rights. | | Material Type | Kunststoff | | Model Number | 7649992538073 | | Pattern | Solid | | Pocket Description | No pocket | | Product Care Instructions | Dry Cloth Clean | | Special Features | FIDO2 Certification | | Style Name | Modern | | Theme | Physical Security, Digital Platforms | | Unit Count | 1 count | | Wallet Compartment Type | Key | ## Product Details - **Brand:** Cryptnox - **Colour:** Black - **Material:** Plastic - **Pattern:** Solid - **Style:** Modern ## Images ![FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access - Image 1](https://m.media-amazon.com/images/I/51TwxHvbQVL.jpg) ![FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access - Image 2](https://m.media-amazon.com/images/I/71DiW5OJ4QL.jpg) ![FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access - Image 3](https://m.media-amazon.com/images/I/619stfZ3dNL.jpg) ![FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access - Image 4](https://m.media-amazon.com/images/I/81SW78iBqbL.jpg) ![FIDO2 Security Key with MIFARE DESFire NFC Smart Card for 2FA MFA | One Swiss-engineered NFC card combining FIDO2 v2.1 login security with MIFARE DESFire EV2 building access - Image 5](https://m.media-amazon.com/images/I/51C292Fsi0L.jpg) ## Questions & Answers **Q: Do you need the card reader to use these security cards or do they work just like regular security keys?** A: They are compatible with most readers (but not all) under windows, and it uses NFC communication. For example, you can use it on iphone as a security card as of IOS 16.3 without any reader. (please place the card at the back and at the top of the phone, where the NFC antenna is) **Q: How do I link it to my iphone 11?** A: HI, Iphone support NFC communication as of Version 7. Iphone 11 can perfectly work with Cryptnox NFC cards, you have to tap it at the back on the upper top when prompted **Q: buenas tardes funciona con bancos como chase, bank of america ?** A: Dear Sir, please kindly check with individual banks if they have started implementing Fido2 authentication. It is public knowledge that they are looking at it, but not sure if it is already functional **Q: How many resident keys can card store?** A: Hi, It has 32 resident key slots ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product I recommend *by D***D on 4 July 2026* Amazing works as described and Very Easy To setup and use and packaging was easy to open and the cards are very well made ### ⭐⭐⭐⭐⭐ Works perfectly on iPhone, subtle. *by A***E on 18 November 2025* Worked perfectly with my iPhone. I like the plain white card. Nice low key s2fa security. ### ⭐⭐⭐⭐⭐ Does exactly what it’s supposed to *by L***Z on 23 April 2023* Everything works. ## Frequently Bought Together - FIDO2 Security Key, Two Factor Authentication (2FA) NFC Security Key, Connect via NFC for Microsoft, Apple, Google, Facebook, Dropbox, Mifare DESFire, Convenient Card Format, FIDO Certified - Yubico - YubiKey 5C NFC - Two-Factor authentication (2FA) Security Key, Connect via USB-C or NFC, FIDO Certified - Protect Your Online Accounts - Cryptnox® USB Smart Card CAC Reader for Computer - Compatible with Windows 10, and Linux - Common Access Card Reader - USB 2.0 Full Speed - PC/SC 2.0 Standard --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/502220760-fido2-security-key-with-mifare-desfire-nfc-smart-card-2fa](https://www.desertcart.us/products/502220760-fido2-security-key-with-mifare-desfire-nfc-smart-card-2fa) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-23*