The LaCie Little Big Disk Thunderbolt Series features two 2.5″ drives in a Mac OS RAID configuration, and depending on whether you opt to use SSDs or HDDs, read speeds can go up to 480MB/s. And because Thunderbolt allows the daisy chaining of these disks together, you can reach transfer rates of up to 800MB/s. The portable disks also feature a heat sink casing and quiet fan to ensure things don’t get too hot. The LaCie Little Big Disk Thunderbolt Series HDD models are available now at Apple Stores (prices start at $399 for 1TB), while the SSD versions will launch in October. Find out more.