G-Technology offers its G-Technology 6TB G-Raid Studio Thunderbolt 2 External Storage System for $379.95. Coupon code "GRaid6TBdn" cuts that to $254.95. With free shipping, that's $5 under our mention from three weeks ago, $125 off, and the second-lowest price we've seen. This system features two hot-swappable 3TB 7200 rpm hard drives, two Thunderbolt 2 ports, and data transfer rates up to 330MB/s.