--- product_id: 226142214 title: "Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black" brand: "thetis" price: "Β£33.66" currency: GBP in_stock: true reviews_count: 13 category: "Thetis" url: https://www.desertcart.co.uk/products/226142214-thetis-security-key-u2f-and-fido2-usb-a-two-factor store_origin: GB region: United Kingdom --- # Bluetooth Low Energy + NFC mobile pairing FIDO2 & U2F multi-protocol security HOTP multi-step authentication Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black **Brand:** thetis **Price:** Β£33.66 **Availability:** βœ… In Stock ## Summary > πŸ” Unlock the future of secure login β€” sleek, smart, and always a step ahead. ## Quick Answers - **What is this?** Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black by thetis - **How much does it cost?** Β£33.66 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/226142214-thetis-security-key-u2f-and-fido2-usb-a-two-factor) ## Best For - thetis enthusiasts ## Why This Product - Trusted thetis brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Sleek, Durable Design:** 360Β° rotating aluminum cover guards your key from drops and scratches while looking ultra-modern. - β€’ **Multi-Layered Security:** Advanced HOTP and U2F protocols ensure ironclad protection against hacks and scams. - β€’ **Seamless Passwordless Future:** Eliminate passwords with FIDO2-certified, phishing-proof authentication. - β€’ **Effortless Mobile Connectivity:** Bluetooth Low Energy tech lets you secure your accounts on the go with instant pairing. - β€’ **Universal Device Compatibility:** Works flawlessly across Windows, macOS, Linux, iOS, and Android via USB, Bluetooth, and NFC. ## Overview The Thetis Security Key is a cutting-edge FIDO2 and U2F compliant two-factor authenticator featuring Bluetooth Low Energy and NFC for seamless mobile device pairing. It supports multi-step HOTP authentication and is compatible with major OS platforms including Windows, macOS, Linux, iOS, and Android. Its durable aluminum alloy design with a rotating cover protects the USB connector, making it both stylish and rugged. Ideal for professionals seeking passwordless, phishing-resistant security with versatile connectivity. ## Description Introducing the new Thetis FIDO2 BLE Security Key for online account and password protection. Backed by powerful BLE technology, now instantly connect your security key via Bluetooth to your favorite devices (i.e. iPhone or Android). FIDO2 Certified passwordless technology prevents phishing, hacking, theft, and more. Backwards compatibility with U2F and HOTP for multi-step authentication. FIDO2 BLE TECHNOLOGY Connect separate devices via Bluetooth technology so iPhone or Android users can get and stay protected. FIDO U2F COMPATIBILITY Backwards compatibility with all registered U2F protocols for popular operating systems such as: Windows, macOS, etc. HOTP (One Time Password) A multi-factored authentication process to help prevent phishing, hacking, online theft, etc. Review: Pretty and Functional - These products are all based on exactly the same standards these days. If it supports U2F and FIDO2, it does the same thing as any other product on the market. So what days that leave? The PHYSICAL design of the product. The thetis product couldn't be better in that regard. It is a beautiful piece of hardware, all while being extremely functional. Ohhhh, and it has extremely well thought out (a certain brand which rhymes with google released bluetooth wiith a MAJOR security hole in their security product :) bluetooth support (though I don't actually own a device that can utilize this :) It folds up for protection. It has two colors it flashes depending on what the user needs to do (most have just one, and a few have none!). it hooks onto your keychain like any other "real" key. ALl aroundit's just a lovely product. Did I mention how slick it looks. I feel like I'm in future (which is *technically* true unless time stopped? Time is still going right?) Downsides? The anodized black seems to wear off after some time hanging out with the rest of my keys on my key-chain. Software support on linux is still very limited. I can lock some stuff, but some of the big important things don't work (yet, I guess the next release cycle will have tons more support). Finally, (on linux) the only browser with the most comprehensive support (reset device, set pin, among a few other features to configure the device) is Chrome which I personally think is an abomination. None of that is the fault of Thetis though. This is a very bleeding edge technology. For now though this is Review: Great item, but what happened to support site? - Nice item to have for quick login, but I'm no longer able to locate suppliers website for support, please advise... ## Features - Mobile Bluetooth Compatibility - Connect to various iPhone or Android devices using advanced Bluetooth Low Energy Technology. Plus, NFC with iOS, and Android devices. Protection to prevent hacking, theft, scams, phishing, etc. - No More Passwords - Revolutionizing the future of online security and account protection by being backed by FIDO2 protocol technology and the world’s largest standard-based, interoperable authentication processes. An effortless password-less world now awaits. **Note: FIDO2 does not support Mac log-in. - Keep Online Account Safe - All our FIDO2 keys are backward compatible with U2F protocols and coincide with the latest Chrome browser and other popular operating systems including: Windows, macOS, and even Linux. U2F is supported and protected on all websites that follow U2F protocols. Note: Only Enterprise Users using Azure Active Directory can access Windows Hello log-in via Thetis FIDO2 BLE Security Key. - Multi-Step Authentication - Designed with advanced HOTP (One Time Password) technology that offers an intricate and personalized multi-factored authentication process. - Sleek & Durable Design - A sleek and slim black frame with a full 360 rotating aluminum alloy cover that protects the USB connector during non-use. Durable, reliable, and sturdy alloy protects the Thetis Key from daily use, accidental drops, and minor scratches. Thetis are proud to offer our customers a full 1-Year Warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0821SK3PR | | Additional Features | Encrypted, Lightweight, Passkey, bluetooth 4.0 | | Best Sellers Rank | #1,402 in USB Flash Drives | | Brand | Thetis | | Color | Black | | Compatible Phone Models | Windows, Mac OS X, Linux (Debian Based or Red Hat Based) and Chrome OS | | Connectivity Technology | Bluetooth, USB | | Customer Reviews | 4.2 out of 5 stars 254 Reviews | | Flash Memory Type | USB | | Hardware Connectivity Technology | USB Type A | | Hardware Interface | USB 2.0 | | Item Weight | 0.6 Ounces | | Manufacturer | Thetis | | Mfr Part Number | MB000385 | | Model Name | Thetis FIDO2 Security Key | | Model Number | MB000385 | | Read Speed | 480 Bytes Per Second | | Special Feature | Encrypted, Lightweight, Passkey, bluetooth 4.0 | | UPC | 600231109833 | | Unit Count | 1.0 Count | | Warranty Description | Standard Express Warranty | | Write Speed | 480 Bytes Per Second | ## Product Details - **Brand:** Thetis - **Hardware Interface:** USB 2.0 - **Read Speed:** 480 Bytes Per Second - **Special Feature:** Encrypted, Lightweight, Passkey, bluetooth 4.0 - **Write Speed:** 480 Bytes Per Second ## Images ![Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Image 1](https://m.media-amazon.com/images/I/51p303RExQL.jpg) ![Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Image 2](https://m.media-amazon.com/images/I/31US0FxxqRL.jpg) ![Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Image 3](https://m.media-amazon.com/images/I/61-v46vrLIL.jpg) ![Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Image 4](https://m.media-amazon.com/images/I/41NUxoUkJCL.jpg) ![Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Image 5](https://m.media-amazon.com/images/I/41S9jZLJfwL.jpg) ## Questions & Answers **Q: Can you recover it if you lose or break this?** A: No, just like the key to your house, if you don't have a backup key or other backup solution, you won't be able to access without it. **Q: Where is this manufactured?** A: Designed in California and made in china cause it is cheaper to make it there. **Q: has anyone got the blue tooth feature to work with a computer or IOS device??** A: yes **Q: Do the bluetooth or NFC features work with it not plugged into a power source (ex. in your pocket/ on a keychain)?** A: No. It won't work. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Pretty and Functional *by N***N on April 29, 2021* These products are all based on exactly the same standards these days. If it supports U2F and FIDO2, it does the same thing as any other product on the market. So what days that leave? The PHYSICAL design of the product. The thetis product couldn't be better in that regard. It is a beautiful piece of hardware, all while being extremely functional. Ohhhh, and it has extremely well thought out (a certain brand which rhymes with google released bluetooth wiith a MAJOR security hole in their security product :) bluetooth support (though I don't actually own a device that can utilize this :) It folds up for protection. It has two colors it flashes depending on what the user needs to do (most have just one, and a few have none!). it hooks onto your keychain like any other "real" key. ALl aroundit's just a lovely product. Did I mention how slick it looks. I feel like I'm in future (which is *technically* true unless time stopped? Time is still going right?) Downsides? The anodized black seems to wear off after some time hanging out with the rest of my keys on my key-chain. Software support on linux is still very limited. I can lock some stuff, but some of the big important things don't work (yet, I guess the next release cycle will have tons more support). Finally, (on linux) the only browser with the most comprehensive support (reset device, set pin, among a few other features to configure the device) is Chrome which I personally think is an abomination. None of that is the fault of Thetis though. This is a very bleeding edge technology. For now though this is ### ⭐⭐⭐⭐ Great item, but what happened to support site? *by C***N on May 12, 2021* Nice item to have for quick login, but I'm no longer able to locate suppliers website for support, please advise... ### ⭐⭐⭐⭐⭐ Easy to use. Works great. *by J***L on March 19, 2021* This security key is a great, cheaper alternative to some of the more expensive Yubico brand security keys. It feels like it has a good build quality, although it is a little thick so putting it on a keychain may add more bulk than some people like. I was able to very easily get the key setup as a form of 2FA for my Bitwarden account and have successfully used it on Windows 10 and macOS. I bought this particular model for the NFC and Bluetooth in the hopes that I could use it on my iPhone. I am still trying to figure out how to get that to work, but I did not deduct a star for it as I believe it is currently a limitation of iOS and not this security key. I would definitely recommend this to anyone that is looking for an inexpensive physical security key to secure their 2FA accounts! ## Frequently Bought Together - Thetis Security Key - U2F and FIDO2, USB A, Two Factor Authenticator with Bluetooth, Multi-Layered Authentication Protection HOTP U2F Compatible Windows, MacOS, Gmail, Linux - Black - Thetis Pro FIDO2 Security Key, Two Factor Authentication NFC Security Key FIDO 2.0, Dual USB A Ports & Type C for Multi layered Protection (HOTP) in Windows/MacOS/Linux, Gmail, Facebook,Dropbox,Github - Yubico - YubiKey 5 NFC - Two-Factor authentication (2FA) Security Key, Connect via USB-A or NFC, FIDO Certified - Protect Your Online Accounts --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/226142214-thetis-security-key-u2f-and-fido2-usb-a-two-factor](https://www.desertcart.co.uk/products/226142214-thetis-security-key-u2f-and-fido2-usb-a-two-factor) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-24*