Step 3: select the inserted SD card to scan. Only when the SD card is properly inserted into card reader and the card reader USB interface is properly connected to computer, can we succeed in accessing SD card and reading/writing data correspondingly.

Using skills: insert SD card into the corresponding slot on one end of card reader, and then connect the USB interface on the other end of card reader to computer. What's more, the function of card reader with SD card inserted is basically the same with that of USB flash drive.įor a computer, the card reader is similar to a USB floppy drive the tiny difference lies in - what the card reader reads is a variety of flash memory cards while USB floppy drive only reads floppy disk. Some of the card readers are even close to that of common USB flash drives. Usually, an SD card reader is not very heavy and the size of it is small.

Besides, it supports reading & writing data and allows the access to SD card files.Īctually, a card reader is specially designed to share information on SD card conveniently. It's an external device with corresponding SD card slot and USB interface. Well, SD card reader is a kind of device used specially for reading SD card. It is now widely used in digital camera, DV, MP4, MP3, PDA and smart phone. And it is favored and used by a lot of people due to its excellent characteristics of small size, fast data transfer and hot swap.Īt present, SD card is the most common memory card on the market. As a new type of storage device based on semiconductor flash memory, SD (Secure Digital) memory card is produced to increase the capacity of digital devices.

Surface book sd card reader not working