Unitek Micro SD card reader adapter with OTG USB 2.0 A male Micro USB B male Connector for smartphone and tablets PC with OTG function, Notebook Fashional and slim design is convenient for carry, LED indicators Can be Easily connected with PC and smart devices and exchanged data. Innovative card reader with OTG function facilitates to transfer data for tablets and mobile phones Support USB2.0 high speed transfer rate, no driver needed Storage space: Micro SD Card Max 32G; Card reader compatible with USB 2.0