Secure digital card or SD card has been an essential part of mobile devices. However, it has some limitations in today’s world. You see, an SD card can only store up to 2GB. In this case, an SDHC card can store up to 32GB of data. Moreover, an SDXC card provides up to 2000GB of data.However, you have to consider some factors regarding the secure digital card. In this article, we are sharing what is: file sdcard , how to view, download, and transfer files from an SD card. So, let’s get started.