Very convenient when you need it specially if you work with cameras other than your phone which most of them uses some kind of micro sd card or sd card. This USB card reader will allow you to transfer those files to your computer fast and in no time thanks to its USB 3.0 interface and, if your computer supports type C, the USB card reader also supports it. The USB can also be used along with several compatible mobile devices that features the type C port giving you the option to insert and connect it directly giving you more storage by expanding it.