G-Technology G-RAID 8TB USB 3.0 / 2 x Thunderbolt 2 Desktop External Hard Drive 0G04085 Silver RPM: 7200 RPM RAID: RAID System (0, 1) Package Contents: G-RAID with Thunderbolt dual drive storage system (2) Thunderbolt cable (1) USB 3.0 Quick Start Guide Power cable AC power adapter