WD G-Technology G-RAID Removable Thunderbolt 2 USB 3.0 - 8TB
Removable Dual-Drive Storage System

Sorry, this product is no longer available, replaced by the G-RAID Removable Thunderbolt 2 USB 3.0 - 20TB and G-RAID Removable Thunderbolt 3 USB-C - 8TB.