Product Description: This USB C Card Reader offers you easy connection between flash memory card and a USB-A/USB-C/Thunderbolt 3 enabled computers, laptops, smartphones and tablets with OTG function. Product Features: Read almost all your memory cards with speed and convenience. Made of durable, high-grade plastics and premium chips. support SD/Micro SD card up to 128G and allows super fast data transfer up to 5Gbps - 10X faster than USB 2.0 (480 Mbps), which allows you to transfer HD movies or files in just seconds, when your host is equipped with USB 3.0 port. Also backward compatible with USB 2.0, 1.1 and 1.0. Memory Card Reader for OTG(Android phone/Tablet must with OTG function). Features a compact design, easy to carry for on the go use. Plug and Play, no drive needed. No additional power supply needed. Others: Universal Compatibility: USB A Devices: Plug and play on the computer or laptop equipped with Standard USB 3.0 port with most modern operating systems, including Windows XP/Vista/7/8/8.1/10, Linux. USB C Laptops OTG USB C Smartphone: for compatible with Samsung S9/S9 Plus/S8/S8 Plus/Note 8, Google Pixel XL/2/2XL, Google Nexus 5X/Nexus 6P, compatible with LG V20/ V30/ G5/ G6, Moto Z, compatible with Microsoft Lumia 950 XL/950, compatible with OnePlus 5/ 3T/ 3, compatible with Huawei P10/ Mate10 etc. OTG USB C Tablet: for compatible with Samsung Galaxy Tab S3 9.7, compatible with Samsung Galaxy Book, compatible with Lenovo Tab 4, compatible with Asus ZenPad 3S, HP Elite X2 , compatible with ACER SWITCH ALPHA 12 etc. Card Slot Compatibility: SD slot: SDXC/SDHC/SD/Extreme I III SD/Ultra II SD/MMC Micro SD/TF slot: Micro SD/TF/Micro SDXC/Micro SDHC/UHS-I Note: Android Smartphones/Tablet do not download app, but need otg function. ONLY the computer with USB 3.0 female port, the USB 3.0 card reader can play out the fast speed. Please do not disconnect card reader during file transfer. This unit is not recommending to be used with two cards simultaneously. Please insert your memory card into the device before connect to your Cellphone or Tablet. If your phone case is thick, please take it off before using the device. Package Includes: 1x USB 3.0 Type C / USB 2 in 1 SD TF Memory Card Reader OTG Adapter