This USB C SD Card Reader offers you easy connection between SD/TF memory card and your Laptop/smartphones OTG function and Tablets with a USB-C/Thunderbolt 3 port. Support Movies / photos / Vlog video data transfering. super fast data transfer, 2 Cards works Simultaneously, improve your working eficiency, must have cards adapter for heavy sd/tf cards users like Profeional photographer, video editor. USB C card reader adapter transfers data Up to 312MB/S Ultra High Super Speed for SD 4.0 UHS-II memory card. (3X faster than UHS-I SD 3.0 version), supporting UHS-II SD Cards, Backward compatible with UHS-I. quickly transfer files in seconds directly from your camera to your USB-C device This Type C Memory Card Reader with SD TF 2-in-1 Dual Connectors, Supports cards including UHS-II, UHS-I, Micro SD, SDXC, SDHC, MMC, RS-MMC, Micro SDXC, Micro SDHC, Compatible with SanDisk Compact Flash Memory Card and Lexar Profeional CompactFlash Card , TOSHIBA SD /TF cards, GoPro hero SD card, Lexar cards etc. Wide compatibility This USB-C SD 4.0 Multi Card Reader Combine Thunderbolt 3 & USB-C, Compatible with iPad Pro ( USB C models) Apple Macbook Pro, Macbook Air, iMac, and widely compatible with other USB C phones and PC like Samsung S21//S20 /S9/S8/S8 Plus, Note 10/9/8, Tab S3, Google Chromebook Pixel, Dell XPS 13/15, Google Pixel XL, 2, 2XL, LG G5, G6, V20, V30, V50, Nexus 5X/6P, OnePlus 9 Pro/8/7 etc.With USB-A male to USB-C female 10G adapter keychain. can work on the laptop or PC with USB-A at 10Gbps data transmiion speed.