When the mobile phone or camera does not have a data cable to connect to the computer, take the memory card out and insert it into the card reader, and then connect it to the USB port of the computer, so that the data inside can be read. The card reader is a tool for reading and writing files in the memory card. Although camera pictures do not have to go through a card reader before they can be exported to computers and mobile phones, the convenience of using a card reader to read files is widely recognized. When buying a card reader, we must first ensure that the interface type is consistent with the memory card we are using
In addition, the card reader also has a difference in transmission speed, which is mainly reflected in the performance indicators of the transmission interface.
For example, the USB3.0 interface is significantly faster than USB2.0. Of course, this requires that the computer's USB interface is also 3.0 standard.
