Sans Digital is selling a new enclosure that could be used to replace a HDD for a cheaper solution than a SSD. One of the characteristics that I like of this one is that it gives you the possibility of mirroring the contests of one card in the second one adding to this device an extra layer of safety.
Unlike existing RAID units that employs hard drives for storage space, the CompactSTOR CR2T utilizes pocket-sized lightweight Compact Flash cards as storage memory for data safekeeping. The CR2T supports spanning and RAID 1 (mirroring) by housing up to two Compact Flash cards. Designed with the same size and connectors as a 2.5” SATA hard drive, the CR2T is compatible with the hard drive slot of laptops, industrial PCs (IPC), small form factor computers, and 2.5” hard drive enclosures. By utilizing Compact Flash cards as storage, the CR2T embraces the same benefits as Solid State Disks (SSD), including less power consumption, minimized heat generation, shock prevention, and noiseless operation. The user is able to benefit from the features of a Solid State Disk at a fraction of the cost while using the CR2T.