Apacer Mega Steno AM401 card reader has four card slots that support all of the most popular flash card formats and a USB 2.0 interface for computer. The high speed performace reach reading: 19.1MB/ Sec, writing: 8.3MB/ Sec at maxium. In addition to the ultra mini size and outstanding speed performance, the AM401 is attractively designed with elegant blue color in a bit pearly shine finish. With the built-in USB 2.0 high speed connector, the AM401 offers easy data transfer, flexibility, and convenience for users of flash memory cards and the multiple formats used in today's PCs, personal digital assistants, digital cameras, music players, mobile phones, and other portable devices.