Usage Tips:Super Speed USB 3.2 SD Card Reader base on Easy portability design, with a build-in Card Cover, it is able to store a Card inside the memory card reader, and don't need to worry about losing the cards. It allows you to easily add a USB 3.0 multi-slot card reader/writer to your USB 3.0 enabled system. The USB 3.0 SD / Mic SD Card Reader is a great option for anyone looking for an easy way add support for the most common storage media types used in common digital cameras, MP3 players, and mobile phones,etc. 2 slots: SD/MMC + Mic SD/T-flash LED indicator for working status Build in Card Cover Card Compatibility: SD Slot:SDXC/UHS-I SD/SDHC/SD/Extreme SD/Extreme III SD/Ultra II SD/MMC(mini SD/mini SDHC/RS-MMC/HS RS MMC may need a adapter) Mic SD(TF) Slot:Mic SDXC/Mic SDHC/Mic SD Colour:Black Material:Plastic Package Contents: 1 * USB 3.2 card reader Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.