This dual-purpose micro SD card reader has a USB 3.0 and USB Type C port, making it simple to backup data or move files to your PC, laptop, USB-C-enabled smartphone, or tablet. SDXC, SDHC, SD, MMC, RS-MMC, Micro SDXC, Micro SD, and Micro SDHC cards are all compatible. Supported SD and TF Cards: To eliminate the need for frequent plugging and unplugging, two external memory cards (SD/Micro SD) can be read and written to simultaneously. An easy way to move files, pictures, and videos between SD cards from digital cameras and phones, or between two memory cards, without taking up space on devices. Secure Transmission at Superspeed: The UGREEN SD card reader's potent GL3224 chip makes it simple to read the SD memory from your DSLR camera.