PRODUCT FEATURES: 1. Interface: Micro USB and USB 2.0 connectors. 1x SD/MMC slot, 1x Micro SD/TF slot 2. Support SD, SDHC, SDXC up to 64GB. 3. Support memory card with FAT 32 file system. Not compatible with NTFS & exFAT formats. 4 .compatible with Micro USB android mobile device with OTG function. COMPATIBLE DEVICE(list is not comprehensive): Samsung Galaxy S6/S6E(+) Samsung Galaxy S5 only Samsung Galaxy S4 only Not For Samsung Galaxy S3/S5 mini/S4 mini Samsung Galaxy Note 5,4,3,2 Samsung Galaxy Note Edge Samsung Galaxy Note Pro Samsung Galaxy Note 10.1 from 2014 onwards Samsung Galaxy Note 8.0 from 2014 onwards Samsung Galaxy Tab pro Samsung Galaxy Tab S/S2 Samsung Galaxy Tab 3 10.1, 8.0 (NOT FOR 7.0) Samsung Galaxy Tab 4 10.1 (NOT FOR 7.0) *Google Nexus 5/6/7/9/10 with help of third-party app such as 'nexus USB OTG file manager, ES file explorer, Nexus media importer'. Not For Nexus 7 2013 edition!* Not For HTC one M9/M8 LG G4/3/2/1, G Pro 1/ Not For G Not For Hudl 1/2 * This kit does not support amazon Kindle & Fire tablets* Host/OTG compatible smartphones and tablets with Android operating system as of Android 4.0 and a micro USB interface NOTE: Never use both connections simultaneously! Package included: 1*card reader