QQ-Tech&reg; 5 in 1 OTG Camera Connection Kit Card Reader USB SD MS TF for Samsung Galaxy Tab P7500 P7510 a must have for your samsung Galaxy Tab;Switch to USB or memory card mode; connect to an external keyboard, a USB powered mouse, SD (HC) Cards, Digital Cameras; The disk format must be FAT32, can not read NTFS; Please note only for Samsung, cannot for apple ipad, use for p7310 p7300 P7500 and P7510; one of Micro B USB Host Mode Cable (OTG Cable) coming tegether for free;