Cryptnox
FIDO2 Security Key Card, Two Factor Authentication (2FA) NFC Security Key FIDO 2.1 Level 1 Certified, Passwordless Login & 2FA Via NFC Or Contact, Works with Windows, Mac, iOS, Android
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies FIDO2 Security Key Card, Two Factor Authentication (2FA) NFC Security… as a mid-pack option worth checking against alternatives in the retro software & media category, based on 252 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Cryptnox's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for retro software & media of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Solid 4.0★ customer rating
- ✓ Backed by Cryptnox's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 🔐 FIDO2 Level 1 Certified for Advanced Authentication: Cryptnox fido2 security key is certified to FIDO 2.1 Level 1 standards for strong, phishing-resistant passwordless and two-factor login security.
- 📱 NFC Tap-to-Login on Mobile & Desktop: Just tap the card on an NFC-enabled device—no USB, no Bluetooth. Fast and secure authentication on compatible devices.
- 🌐 Works with Most Browsers on Windows, macOS, iOS & Android: This security keys for two factor authentication is compatible with Chrome, Edge, Safari and others on major platforms. Ideal for securing Google, Microsoft, GitHub, Facebook, and more.
- 🔌 Optional Contact Reader Support: Our 2fa security key is Optimized for NFC, but also supports ISO 7816 contact smart card readers where required. Flexible for various environments.
- 💳 Thin & Portable Smart Card Format: This fido security key is sleek and durable. Credit card-sized to fit easily in any wallet or ID holder—perfect for everyday use or travel.
Full Specifications
| Brand | Cryptnox |
|---|---|
| Color | Black |
| Alert Type | Motion |
| Unit Count | 1.0 Count |
| Connectivity | Bluetooth, USB |
| Model Number | 7649992538158 |
| Power Source | Standalone Battery Power |
| Compatibility | Android, iOS, Mac |
| Built-In Media | Plastic |
| Control Method | Touch |
| Mfr Part Number | Cryptnox SA |
| Compatible Devices | Android, Windows, iOS, macOS |
| Installation Method | Wireless |
| Connectivity Technology | Wireless |
Ready to buy?
FIDO2 Security Key Card, Two Factor Authentication (2FA) NFC Security Key FIDO 2.1 Level 1 Certified, Passwordless Login & 2FA Via NFC Or Contact, Works with Windows, Mac, iOS, Android is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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