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

It works with Windows. I use this for keeping my device secure. I just insert my smart card and it reads it just fine. It is small and the USB folds into the rear to make it easy to store and carry on the go. It worked with my card, so I assume it would work with any card that has a private key. No drivers were needed for me, but I also had another one of a different vendor that was already configured, so I am not certain if it requires any downloads. I did visit the vendor website and was redirected to their github page to see their software. It was a python package, but I did not try it yet because it "just worked".

This Cryptnox USB smart card reader does exactly what it needs to do, and does it well. I've used it primarily as a Common Access Card (CAC) reader, and it functions flawlessly. It was recognized immediately by both my Windows 10 and Linux systems without needing any special drivers, which is a huge plus. Being PC/SC 2.0 compliant means it should work with a wide range of applications requiring smart card access. The USB 2.0 connection provides plenty of speed for this purpose. A dependable and straightforward solution for anyone needing a reliable smart card reader.

The card reader was easy to use. A simple plug-n-play into a USB-A port is all that is necessary. The listing specifies Windows 10 and Linux, so I took a chance requesting this item. I can confirm, however, that it did work on my Windows 11 machine.I paired this with a Cryptnox security key card.I was able to set up my 2FA with Dropbox. When I was asked to insert my key, I slid the card into this reader and it registered it flawlessly.I am deducting 1 star for 2 different "half-star" reasons. One, this unit is on the higher end of the price range for these types of units. Secondly, the built in USB-A plug is really short. (Yes, it shows this on the photos, but it is still annoying to use. Workable, sure, but still annoying.)But, it works.

This Cryptnox USB Smart Card Reader has exceeded my expectations in every way. The sleek, compact design makes it highly portable while maintaining a professional appearance. I particularly appreciate how it sits nearly flush against my laptop's USB port, avoiding the bulky protrusion common with other readers.Setup was remarkably straightforward - true plug-and-play functionality on both my Windows 10 workstation and Linux machine. The device was recognized instantly, requiring no additional driver installation. The USB 2.0 Full Speed ensures quick card reading without any lag or connectivity issues.The build quality is exceptional. The matte black finish with the elegant Cryptnox logo gives it a premium feel, while the sturdy construction suggests this device will last for years of daily use. The card insertion is smooth yet secure, providing clear tactile feedback when properly connected.For those working in environments requiring CAC authentication, this reader is a reliable workhorse. I've used it daily for secure login and digital signatures without a single hiccup. The PC/SC 2.0 Standard compliance ensures broad compatibility with various security applications.Given its performance, build quality, and seamless cross-platform compatibility, this CAC reader offers outstanding value. Whether you're a government employee, contractor, or security-conscious professional, I highly recommend this Cryptnox reader for your smart card authentication needs.

This device is poorly supported, and is not recognized by my Mac or my iOS devices (to be fair, a closer look at the info states this, when ones half the cost do, perfectly fine!! — Moreover, this card has NO software to set a PIN on the card, so you must do this via Windows’s built-in Security Key management tool. Unless you know what you’re doing with hardware credentials that are FIDO2 compatible, and you have windows—NOT Linux, like the description says—to program the card, it won’t be useful. iOS devices can read the NFC, but not program the card.

Works great on Windows 11, in Google Chrome. Detected ok on Fedora Linux as well, but only at the operating system level (not the fault of the product, just lacking browser support on Linux). A+

I love how minimal and miniature this CAC reader is. easy to carry, works great, perfect.

Works for what I need it to. It's easy to install and it's portable.