"Data Robotics have come out with a wonderful storage solution that not only provides oodles of storage space, but also, redundantly backs this data up across multiple drives. The best part of this system is there is it requires minimal user intervention. Their product is the Drobo, the world's first storage robot, which is a one stop solution for redundant data protection. The Drobo is an external storage device with four user accessible hard drive slots that use 3.5" SATA hard drives. The maximum capacity of the Drobo is only dependent on current hard drive size limits.Setup is beyond simple and fairly idiot proof."