Coolmax has renovated enclosures once again and gone another step further for all 3.5" SATA HDD. This new dual bay sata raid enclosure entitles users to expand their storage capacity without the hassle of digging through mountains of cables and wires in their PC. It supports JBOD, BIG, RAID 0, RAID 1, SAFE 33, and SAFE 50 for more flexible and effective storage options. This high performance storage unit is also convenient with plug and play in both USB and eSATA connections and hot swap capable with eSATA. Equipped with a one-touch backup button and software, this CD-320 dual bay sata raid enclosure offers a sense of safety and security.