This internal USB 2.0 Card Reader/Writer (CRW) device fits into 3.5Ё drive bay to save the desktop space, it provides an ideal solution for those who want the convenience and mobility to read and write the most popular memory cards. This ingenious device connects to a motherboard's internal USB header port (most PII and newer motherboards have them, and most aren't used). Sharing the data is quick and easy. Share between media types or to the computer. It can also be used as an effective hard drive to transmit large amount of data immediately between the memory cards and the host computer through USB 2.0 interface.