There's not a ton differentiating these from each other, but you'll still need to make sure you get the right one.
For contactless smart cards that have more highly-powered RF circuits inside them, you'll need a specialized proximity card reader. Some of these models also support EMV payment processing, however, if you need to accept payments on a regular basis, we high recommend getting a dedicated credit card reader. That last part is important to many governmental offices and contractors, and as such, those institutions should look to the IOgear GSR205 for an American-made security solution. Given their simplicity, these devices come down mostly to dependability, which all of our recommendations offer, and USA-sourced materials. For that reason, the only recent change to this Wiki was the removal of the Gemalto IDBridge, which is now difficult to find and offers no tangible benefits compared to other options. On its fundamental level, CAC smart card technology has not changed in years, and it almost certainly won't change significantly anytime soon.
