This product is designed for convenient us to share， read， copy photos from camera， USB flash card， memory cards， mobile phone， mp3， mp4 to mobile phone. It is the bridge instead of a PC/Laptop when you need to own other devices’ files in your mobile phone.Features:Compatible with Samsung Galaxy S53 in1 : OTG Adapter， HUB， Card ReaderRead & Write TF， SD ， SDXC， SDHC ， Micro SD， MicroSDHC， Micro SDXC， Decure Digital ， Class 10 ， Class 4Supports External Keyboards.Transfer files to OTG， Allow you to connect to most USB flash drives， Mouse， Keyboard and Digital camera.Simple to use， just plug into micro-usb on your phone/Tablet， no installation requireSpecifications:Interface: Micro USB male for connecting your phoneSD slot *1TF slot *1USB A type female 1Operation temperature: 0~50°CStorage temperature: -10~85°CColor: BlackWire Length:around 13cmPackage content:1 OTG USB Card Reader