Thetis Pro-C FIDO2 Security Key Passkey Device with USB C & NFC, TOTP/HOTP Authenticator APP, FIDO 2.0 Two Factor Authentication 2FA MFA, Works with Windows/macOS/Linux/Gmail/Facebook/Dropbox/GitHub

Feels solid, and working great. Highly compatible with Samsung phones. I originally chose Yubikey but then had to return it since it wasn't compatible for android devices and the NFC and USB functionality was not working. This key isn't too large, fits nicely on my keychain to carry around with me. I honestly feel more protected now knowing that i have a easy to use this physical security key that safeguards the sources of digital vulnerability that I have taken for granted for way too long.

The Thetis Pro-C FIDO2 Security Key is hands down the best security solution I’ve used for protecting my online accounts. Its build quality is top-notch, with a sleek metal design that feels durable yet lightweight. Setting it up was surprisingly easy—it works seamlessly with major platforms like Google, Microsoft, and even password managers like 1Password. The USB-C connection is fast and reliable, and the key has NFC functionality, which is perfect for securing accounts on my phone. I also love that it’s FIDO2 certified, ensuring the highest standard of security without relying on SMS codes or other outdated methods. What truly stands out is its consistency—it’s incredibly responsive and hasn’t let me down once. For anyone serious about safeguarding their digital life, this is a must-have. Highly recommend!

I purchased this for my aging parents, I felt perhaps a security key was something to use to secure their information without my always having to be present. Keeping track of all their passwords and updating them and warning them about security was becoming a hassle. This has been a complete game changer, once I set it up on their PC, they are able to use it with minimal assistance on their own. They are not tech friendly people, yet this is easy for them to maneuver. Setup was straightforward and relatively simple, we've had no issues since they have been using it for well over a month, even traveling with it and they are happy to be more independent when it comes to their digital life.

At first the product felt solid and strong but after hardly using it the usb-c tip broke off. There is a 1year warranty but it's a joke Cost more to send it back then it was bought for. Quote from website: "The owner of the product will be responsible for all the shipping costs for sending back the product. Any customs fees, including, but not limited to, taxes, duties, and any other courier-related fees, are the responsibility of the owner. We advise using a trackable shipping method to ensure safe delivery to us. Thetis is not liable for lost, stolen, or damaged shipments for returning packages. If you are within 14 days of the purchase, you may be eligible for pre-paid return shipping postage to return the faulty product." I liked to key but android had some issues with it not working correctly or recognizing it. It's nice to have the totp option and nfc. The price is pretty good a yubikey with the same options and protocols is $50 vs the thetis key for $15-$20 If you want to use this, I recommend the usb-a instead and use an adapter if you need usv-c Update: No email back from their site. No contact at all or anything. Not sure if they can be trusted with my security if they don't even stand behind their product. I did buy a yubikey that was on sell it is sturdier (went with usb-a because of this issue though)

the security key is reliable, and is actually compatible with linux mint xia(still untestested with the other linux distributions out there,so do your research before purchasing a security key for linux,because it is hit or miss depending on distribution support(linux distros can even include ChromeOS(which is the OS chromebooks run),Chrome OS Flex(a legacy/UEFI adapted version of ChromeOS for older PCs and MacBooks,does not support play store,google assistant and some biometric security hardware,some components like a CD-ROM will have partial functionality,some parts may not work at all),and Android(a very popular smartphone OS for alot of companies),those 3 despite being made by google,there is alot of linux distributions,those previously listed 3 are just a few examples,i personally reccomend linux mint) *i know this might start debate for some linux users,or start a ragebait(annoying someone by a subject while socalizing),so please do not get annoyed at me for saying a reccomended linux distro there is alot of linux distributions,so hit or miss depending on linux distribution,saying "linux" compatability is talking about the platform(which there is a few main ones,those are debian,arch,and ubuntu as the common platforms a distribution is based on,noticed linux mint is kind of a hybrid of debian,arch,and ubuntu except for a special debian based variant,and ubuntu also has 6 variants alongside the main version),anyways keep in mind when "linux" is stated,that is talking about the type of OS there is many distributions of linux,each one built different than the other,so support is not the same for each linux distribution also untested with USB-C to USB-A adapters,so keep that in mind also,highly reccomend when connecting this to a USB-A or any kind of other port to use an adapter(untested) or USB-C PCI card for custom build/full-size desktops(i know this will work for full size desktops,does not work well if ports are tight together or you have a really wide subdevice/accessory to the computer port neighboring it without a extention(untested) does not work on a device with someone else's account as main account(standard for security keys) also don't know offhand if this works with microusb or lightning port devices also haven't tested NFC yet this security key can work by just registering it to a account via account settings also,the OEM application is not nessisary

great product but does not have NFC

Great product for two factor security. Works as it should.

Suveränt smidig såväl hård- som mjukvara. Enkelt med alla lösenord, serienummer, programvarulicenser o.s.v. på ett ställe.

Works great

Ótimo chegou como combinado

I've been using the Thetis Pro-C FIDO2 key for a while now, primarily for basic two-factor authentication, and I'm quite satisfied with its performance. While I haven't explored all of its advanced features like TOTP/HOTP, everything I need it for works flawlessly. I use the Thetis Pro-C alongside a Yubico key, and I honestly can't tell the difference in speed or basic functionality. Both keys perform equally well in securing my accounts. This makes the Thetis Pro-C an excellent value proposition, offering comparable performance to more expensive brands at a more affordable price point. Pros: - Reliable FIDO2 performance - Comparable speed and functionality to Yubico keys - Excellent value for money Cons: - None at the moment * I haven't tested all advanced features! Overall: If you're looking for a reliable and affordable FIDO2 security key for basic two-factor authentication, the Thetis Pro-C is a great option. It offers solid performance and is a great alternative to more expensive brands. *** Top tip for those who say NFC doesn't work: *** The protective bracket that the key rotates in is made of metal (aluminum), which blocks the NFC chip. You must therefore unfold the key before you can scan it. This is a bit annoying at times, but on the other hand, it offers an extra layer of security.

I’ve been trying out the Thetis Pro-C FIDO2 Security Key, and my initial experience has been positive. Setup with USB-C and NFC worked smoothly, and the device responded consistently during my authentication tests. I also appreciate that it supports TOTP/HOTP, which gives me more flexibility across different accounts. The first thing I noticed was the build quality. In my opinion, the design feels more refined and substantial compared to some other security keys I’ve used. The metal housing gives it a more premium feel in the hand, and the overall fit and finish look thoughtfully put together. The LED indicator is subtle and blends well with the design—nothing flashy, but it has a cleaner and more modern appearance to me. The device also feels secure on a keychain without being bulky. NFC worked reliably during my early tests, and tapping into mobile authentication felt intuitive. As with any security device, I’ll continue testing it over time, but my first impressions are that it delivers a good balance of durability, aesthetic appeal, and functionality. So far, the Thetis Pro-C strikes me as a solid choice if you want a security key that not only works well but also feels well-made. I’ll update my thoughts if anything noteworthy comes up with longer use.