The UNITEK microUSB 2-in-1 OTG Card Reader is a storage gadget for Smartphone / Tablet / PC. This UNITEK microUSB 2-in-1 OTG Card Reader not only connects to your computer but also to your OTG enabled Smartphone / Tablet. With the built-in micro SD(HC) memory slot, you can get easy to increase your mobile device storage space. This 2-way storage device is the easiest way to transfer the data between your PC and mobile device.