Size:256GB 2 Pack The SanDisk Ultra Dual Drive m3.0 makes it easy to transfer content from your phone to your computer. 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 your devices—from your Android smartphone or tablet to your laptop, PC or Mac computer. The USB 3.0 connector is high-performance and backward-compatible with USB 2.0 ports. The SanDisk Memory Zone app for Android (available on Google Play) helps you manage your device’s memory and your content. SanDisk products are constructed to the highest standards and rigorously tested. You can be confident in the outstanding quality, performance and reliability of every SanDisk product.