3 in 1 Trail/Scouting/ Game Camera Viewer for Android Phones, Micro USB Connector, Reads SD, Micro SD Cards and USB Flash Drive(3 in 1 Card Reader) 3 in 1 card reader for mobile phone with OTG function (for Samsung, HTC, Motorola, LG, etc.) Support SD/MMC/TF card; Support external USB mouse, keyboard Convenient us to share, read, copy photos from our digital device to mobile phone Supports SDHC/SDXC/MMC/Micro SD card and connect USB flashdrive, external keyboard, mouse to USB port. *Does NOT support external hard drive, SDXC card and USB stick over 64GB because of limited current provided by mobile device. 12-month warranty, Friendly 7/24 email customer support!