Western Digital has already acquired Hitachi and its G-Technology. The upcoming G-RAID with Thunderbolt is certainly exciting. It is the world’s highest capacity RAID 0 Thunderbolt external storage drive. It will be available in 4, 6, and 8 TB capacities. These are aimed at audio and video professionals that require speedy transfers. These cost you for as low as $499 (for the 4 TB version). The drives are compatible with Windows and Mac.