USB C to USB 3.0 Adapter USB C male to USB 3.0 female, high speed data transfer, compatible with USB flash drives, USB keyboards and other computer peripherals.  Plug & Play OTG adapter. No additional drivers/software required.  Universal Compatibility USB-C to USB adapter compatible with Macbook Pro 2019/2018/2017,Samsung Galaxy S8/S9, Google Pixel 2/3/4 XL and other USB-C phones, tablets and laptops.  Sturdy & Durable Aluminum housing resists scratches, premium USB C connector passes more than 10,000 push and pull tests.  What You Get 3 Pack USB-C to USB 3.0 adapter. When the blue light is working, the USB-C adapter is working properly.