Secure all of your documents and media with the RAID Thunderbolt and USB Hard Drive by LaCie. Designed rugged so it can be taken, packed, stored, and used anywhere, this mobile hard drive has an incredible 4-terabyte storage capacity. The RAID Hard Drive comes with an integrated Thunderbolt cable that neatly tucks into the protective perimeter of the device. On one end is a removable cover to secure the Thunderbolt connector as well as a spare power source port. Working with both Mac and PC systems, the RAID Hard Drive has amazing performance with transfer rates of up to 240 MB per second making all of your data more accessible than ever. Most importantly, the LaCie RAID Hard Drive comes with software so you can customize the way your data is stored.