Quickly Transfer Files Between Mobile Devices & Computers Built of the highest quality aluminum, the IOGEAR USB-C Duo Card Reader/Writer is a perfect bridge for transferring your data and images between your mobile devices and computers. Supporting USB On-The-Go (OTG) technology for USB-C Android mobile devices, the reader is ready to use - no apps required! Compact Card Reader On-The-Go The reader's soft-gel silicon cover protects its ports from dust and damage while it travels in your pocket or bag. This handy device makes file transfers in a snap while on the go and is perfect for anyone who works between a tablet or computer and a smartphone. Duo USB, Dual-Slot In addition to supporting USB-C Android mobile devices, the USB-C Duo Card Reader/Writer is designed to widely support computers equipped with USB Type-A, USB-C, and Thunderbolt 3 ports. Transfer files to SD/MicroSD cards without worrying about hardware compatibility whether you have a Windows PC, MacBook or the Microsoft Surface tablet. Transfer data from the most popular flash memory card formats including SD and MicroSD with the dual card slot design.