3-IN-1 OTG Card Reader: ONE card reader with 3 connectors; USB 2.0, USB Type-C, and Micro USB, which making this card reader compatible with USB Type-C and micro USB Android smartphones tablets that support OTG function, and computers/laptop/with USB or USB type C port.
Note: The SD card and Micro SD card NOT INCLUDED, it is also not compatible with IOS device(Such as, iPhone, iPad).This OTG Adaper works well for Android Phone, tablets and notebook because of the standard USB 2.0 connector(Type A), Micro USB port(Type B) and USB C(type C) combination.
Work on Android Smartphones and Tablets: Insert the SD/Micro card to the card writer and plug into the smartphone/Tablet that support USB OTG(on-the-go) function with Micro USB or type-C interface. Then you can manage your file as you want, playback video, music or pictures directly from external memory card without occupying space on device.
Work on Computer: This card reader can help you transmit data to your computer from the sd card. You can read your Micro SD memory card contents directly on your computer when you connected the USB adpater. And you also can manage your file such as rename, edit, copy, delete etc.