The Go Flex Slim for Mac performance drive is the optimal capacity addition for portable devices with limited storage. It offers USB (Universal Serial Bus) 2.0 connectivity & is formatted for Mac computers out of the box, making it fully compatible with Time Machine software. The ultra-thin anodized case not only helps resist against damage while transporting, it also adds a unique & premium finish to the drive. It is about as thick as a pencil, allowing you to slide it in a computer case, backpack or pocket so you can take your content anywhere & everywhere. As part of the Go Flex family, the Go Flex Slim for Mac performance drive is compatible with Go Flex accessories giving you the option to upgrade to faster interfaces. Install the downloadable HFS+ driver on a PC & use the drive interchangeably between PC & Mac computers without formatting & performance loss. This is the perfect solution for Mac computer users who want the flexibility to use a PC without any program limitation or file size restrictions.