1. 【USB C and USB 3.0 Ports Integrated】Either interface of SD card reader can transfer files at a speed of 10 times faster than USB 2.0, excellent for transferring and reading photos, files, movies from SD/Micro SD card to laptop, computer, smart phone and other OTG devices. (Notice: Card NOT included). 2. 【2 in 1】Micro SD card adapter contains 2 slots to insert cards, which avoids repeatedly insertion and removal.   With both TF card slot and SD card slot,  the USB SD card reader accelerate your efficiency with dual card access, plug and play,  no need for extra power source.   Transferring can make between 2 slotted cards or between OTG devices and 2 cards  simultaneously. 3. 【Broad Adaptability】Compatible with most USB C/A devices. The USB C SD card reader can read storage card up to 2  TB like SD, Micro SD, SDHC, Micro SDHC, SDXC, Micro SDXC,MMC, RS-MMC and UHS-I cards.   Supports Windows, Mac OS,  Chrome OS and Android system. 4. [Premium Material Protection] Aluminum shell cover promotes the SD card reader USB fast heat dissipation and extended  usage.   Indicator light aside the card slot notices you to check the connection status of USB card reader.    Protective covers over interfaces separate your SD card reader for PC from dust, abrasion. 5. 【Compact Design】Brief profile and light to the touch, SD to USB adapter is portable to take while on the go, a great convenience to access SD/Micro SD cards when needed.