Storage capacity: Please Select Formatted In MAC OS Journaled USB 2.0 hard drive interface Support plug and play USB bus powered - no external power needed Bipra external USB 2.5" portable size hard drive comes with free carry case. You can store all data in your Pocket size drive. Ultra slim design. Formatted and ready to be used. No messing about needed, just plug it into your USB Ports and away you go. Support plug and play. Ideal for data backup, photos, video, iTunes, iPod,MP3, MP4 and presentations etc. Support USB2.0 480MB/Sec ultra high transfer speed, copy huge files in a minutes time. Can be utilised on any personal computers, desktop or laptop. Formatted in Mac Extended Journaled for you to use on Mac OS only. Available in black colour.