The Type-C Card Reader is an ideal choice for fast and efficient data syncing from TF/ for SD cards to a USB-C laptop or OTG phone It reads 2 cards simultaneously for all Type-C laptops with for Windows, for Linux or for Mac OS systems, keeping you away from repeatably changing flashcards, which supports cards up to 512G USB-C card reader is allocated with USB 3.1 interface with highest transmission speed up to 5Gbps, perfectly saving your time Plug and play, easy to use, no driver needed for various OS, such as for Mac OS X, for Windows 7/8/8.1/10, for Linux, for Android 5.0 or above Compatible with (Partial List): USB-C Laptop: Apple Macbook Air 2018, Macbook Pro 13"" 2017 2016, Macbook Pro 15"" 2017 2016, iMac 2017, New MacBook 12”(2015&2016), Google Chromebook Pixel (2015), Dell XPS 13 (2 IN 1, 9350& 9360), XPS 15-9560, Lenovo Yoga 900/910, Huawei Matebook etc. OTG Type C Smartphone: Samsung Note 10 Plus/Note 10 /Note 9 / Note 8/S10 /S10 Plus/S9/S8/S8 Plus, Google Pixel XL/2/2XL, Google Nexus 5X/Nexus 6P, LG V20/ V30/ G5/ G6, Moto Z, Microsoft Lumia 950 XL/950, OnePlus 7 Pro/ 7/ 5/ 3T/ 3, Huawei P10/ Mate10 etc. OTG USB-C Tablet: Samsung Galaxy Tab S4, Tab S3 9.7, Samsung Galaxy Book, Lenovo Tab 4, Asus ZenPad 3S, HP Elite X2, ACER SWITCH ALPHA 12 etc.? Dual Card Slots Compatibility: For SD Slot: Support UHS-I (for SD, for SDXC, for SDHC, RS-MMC, MMC Micro) TF Slot: Support UHS-I (for Micro SD, for Micro SDHC, for Micro SDXC)