The AIYEEN 4-in-1 SD Card Reader has two ports and two slots: a Micro SD memory card slot, a USB port, a USB C port, and a TF memory card slot. High Speed Transfer: USB 2.0 offers a 5Gbps transfer rate for high speed transfers. Easily uploading files and images in a matter of seconds increases office productivity. Compatible with SD, SDXC/Micro SDXC, SDHC, MMC, Micro SD/TF, and Micro SDHC cards, this SD card adapter is universally compatible. Support for Windows 10, 8, 7, Mac OS, and Linux 2.6.14 or later "Plug and Play" No further software support is needed. You can use the card reader right away by plugging it into your Type C or USB A device. Portable and Convenient The two USB ports can be shielded from dust and pollution by a silicone cap, making the card