Space-Saving Design: It’s ultra-compact, allowing you to connect it to your computer while retaining unimpeded access to your other ports. What You Get: PowerExpand 2-in-1 SD 4.0 Card Reader ...

First available as external devices for one type of card, readers were subsequently built into the computer to handle all popular formats. Also known as a "memory card reader/writer," "flash ...

We list the best mobile credit card processors, to make it simple and easy to take payments by credit and debit card, whether in store, at an event, or on the go. While there are plenty of credit ...

There are several card reader modules available ... though you'll be using one to connect it to your computer. The other can be used to output to an up-to 8K display or to even daisy-chain ...

If you’ve worked with passive RFID before, you know that most readers only work within inches of the card. In [Fran’s] DEFCON talk this summer he calls it the “ass-grabbing method” of ...

But [Neutrino] made his own using an ESP8266 married to a card reader. It all starts with the old trick of soldering a header to an SD card adapter. The USB port is still there, but it is only for ...