Note: 1.For Android cellphones,please make sure your cellphones have OTG function. When you want to use the U disk,please open the OTG function first. 2.After insert SD card, if you find it can not work,please format the SD card to exFAT or FAT32. Made for: iPhone 6s/iPhone 6s Plus/iPhone 6/iPhone 6 Plus/iPhone 5s/iPhone 5/iPhone 5C /iPad Air 2/iPad Mini 2/iPad Mini/iPad(4th generation)/iPod touch(5th generation), Samsung Tablets,Galaxy S6 S5 S4 S3, Galaxy Note 4 3 2,LG G3,Smartphones,Tablets Simply plug it into your iPhone or iPad,your device instantly empowered with high speed and large capacity. Comes with 2 in 1 USB + Micro USB plug,compatible with all android phone with micro USB connector. For IOS products,download a app called IUSB pro. Built in USB connector,you can transfer files between PC and smartphone easily!