This is a Type-C to SD/Micro SD/USB3.0 adapter which allows to connect 2 memory cards into Type-C/Thunderbolt supported host (PC/Laptop/Smart Phones:etc.) simultaneously with data transfer up to 104MB/S. With this product: you can transfer videos/pictures or files from memory cards to your Type-C host or read data in the memory card with large capacity in seconds: sharing all your interests with your friends. The USB 3.0 port allows you to connect USB device or another hub to the host USB-C computer.