SanDisk's Ultra Dual USB Drive is a USB drive with two connectors. On one side there is a micro-USB head for Android phones and tablets. On the other is a USB 2.0 connector for computers. The purpose of dual-head connections is for easy file transfers between your PC or Mac and your Android device.
Small and compact; No cap for drive; Has dual head connections
No usb 3.0; Thick cases might have to be taken off