Compatible Memory Cards: USB 2.0 SD/micro SD/card reader for data transmission, Transfer files, pictures, videos from SD/Micro SD card to your Computer ,Android Smartphone & Tablets (with OTG Function). It supports SDXC/SDHC/SD/MMC/RS-MMC/Micro SD/TF /Micro SDXC/Micro SDHC/UHS-I memory cards.Multi-Functional 2-type USB Port Design: USB Male & Micro USB Male & Connector, making this card reader compatible with Computer (PC or MacBook) ,Android Smartphone & Tablets with OTG Function better for Economical option.Compatible Samsung Galaxy S9 S8 Note 9 8,Apple New Macbook, Nexus 5X,Google Pixel, LG and many other USB-C Devices .[On-The-Go Data]: Support on all OTG device. Playback videos/music directly from external memory without occupying space on Device. Share video or picture to your families or friends in anytime anywhere.Please contact us if you don't know whether your phone have OTG function.Plug & Play Card Reader: No drivers or additional software required for Windows 10, 8, 7, Vista and XP, MAC OS 10.4.6 and above, as well as Android. No additional power supply needed. YAWALL PROMISE: SD/Micro Card Reader ( Black,doesn't include SD/Micro SD card ), 12-month warranty refund and new replacement.Plug & Play Card Reader: No drivers or additional software required for Windows 10, 8, 7, Vista and XP, MAC OS 10.4.6 and above, as well as Android. No additional power supply needed. YAWALL PROMISE: SD/Micro Card Reader ( Black,doesn't include SD/Micro SD card ), 12-month warranty refund and new replacement.