3Ports Square Card Reader Android USB Hub *Support 3USB devices and memory card at the same time *Multifunctional combo: USB HUB combine with card reader * Full data transfer rate up to 480Mbps * Compliant with USB version 2.0 * Over-current detection and protection for each downstream port * Allows simultaneous operation of up to 3 seperate devices all attached to a single USB port * Plug-and-play and hot swapping functions * Individual port overload protection * User-friendly and ergonomic design, portable * Supply several color optional * Excellent for promotional gifts Widely used for external storage devices, Scanners, Printers, DVD Drives, CD-RM drives, Digital Cameras/Camcorder