Hardware Canucks posted a review of both the USB 2.0 and Firewire versions of Mediasonic's new Dual Bay RAID Hard Drive Enclosures. A quote from the article:

Just recently Canadian-based Mediasonic, a relative newcomer to the market, released two small external enclosures named the HUR1-SU2 (USB2.0) and the HUR1-SU2FWB (Firewire & USB 2.0). These devices are marketed as low-priced, "instant" storage solutions that are designed for archival backups, large-capacity portable storage, classified/sensitive data storage or just extra disk storage. Both of these units are small 2 bay enclosures that not only allow you to use any 3.5? SATA hard drives but also allow you to set them up in RAID 1 or 0.

Mediasonic Dual Bay RAID Hard Drive Enclosures Review