This key was purchased to transfer files from the tablet to the computer (and vice versa) and to save media files to play them on the shelf because the shelves of memory capacity is limited. Works perfectly on an Acer tablet or she appears immediately USB storage and allows all manipulation. Under the file manager appears usbcard1. By cons before removing think to uninstall it (parameter;. Storage; USB storage; remove the SD card also recognized by my computer so I am very satisfied with my purchase A little more, hoods... Sliding protection that adequately protect the connectors.