The SanDisk Ultra Dual Drive m3.0 – 32GB makes it easy to free up space on your OTG-enabled Android smartphone and tablet. With a micro-USB connector on one end and a USB 3.0 connector on the other, the drive lets you move content easily between all your devices from your Android smartphone or tablet to your laptop, PC or Mac computer. The high-performance USB 3.0 connector is backward-compatible with USB 2.0 ports and, with speeds of up to 130MB/s, it allows you transfer a full-length movie to the drive faster than with a standard USB 2.0 drive.a