Card reader for directly reading and writing to sdmicrosd memory cards on a notebookpc or smartphonetablet high speed data transfer of up to 480 mbps led function indicator gives information about the device status super compact and easy to transport along with a notebooktablet suitable and tested for usb 20 downward compatible with usb 11 usb plug type a for connection with a notebookpc usb plug type micro for connection with a smartphonetablet supports usb on the go usb otg memory cards sdsd