Sandisk 128GB OTG Dual Drive.

Quickly and easily transfer your files between OTG-enabled Android smartphones and tablets  and PC and Mac computers. The San Disk Ultra Dual USB Drive 3.0 makes it easy—and fast—to free up space for photos, videos, songs, and more.
This is the flash drive you've always wanted, the one that makes it fast and easy to transfer or share files from your OTG-enabled Android smartphone or tablet onto your PC or Mac computer, or with other Android devices. Now your phone is always in the zone, ready to shoot more pictures and videos or add more songs on the go.
With a micro-USB connector on one end, and a USB 3.0 connector on the other, this sleek, handy flash drive lets you move content easily between all the devices in your world—from your OTG-enabled Android smartphone or tablet to your laptop, your PC or Mac computer. The USB connector is USB 3.0 enabled and backward-compatible with USB 2.0 ports.
Transfer from your flash drive to your computer’s USB 3.0 port at the no-wait rate of up to 150MB/s3. Speed like this makes it possible to move whole movies, audio books, or music libraries in just seconds. And that helps make your Android smartphone the ultimate on-the-go entertainment device as well your favorite camera.
Compatibility The San Disk Ultra Dual USB Drive 3.0 is compatible with most Android devices
Automatically detects when plugged in.This "plug and play" flash drive is automatically detected when you connect it to an OTG-enabled Android smartphone or tablet