Today, we will be reviewing the Lexar Professional 1066x microSD™ UHS-I Card SILVER Series card. These blazing fast cards a must for anyone in photography. These can save so much time when transfer files and also keep you images lossless. The biggest thing when testing these cards, is the controller. What kind of device are you using and what port are you using on the computer? These are thing to watch for if you are experiencing slower than expect transfer speeds. The same card can reach 100MB/s with one device and only 20MB/s on another. There are a lot of scenarios where the Device reader or even the computers port can diminish results. Just to keep it simple, avoid USB 2.0 ports.