The Cruzer® Micro from SanDisk® is a small USB Flash Drive that connects to a computer's USB port and lets you store and move up to 2 GB of data. You can easily store your key documents, pictures, music and video clips on a Cruzer® Micro and transfer them to another computer with a USB port. This small, portable, and smart Flash Drive fits on any keychain. Its retractable USB connector eliminates the need for caps and protects your port. This U3 Smart enabled flash drive comes loaded with the U3 compatible software - CruzerSync synchronization tool, SignupShield password manager, SKYPE, and AVAST Antivirus.. The U3 feature works only on Windows® 2000 and XP.