The Icy Dock Dual 2.5"-3.5" SATA HDD/SSD Converter comes with Hardware Raid function. This Icy Dock Converters model number is MB982SPR-2S and is constructed of metal. It can be inserted into any 3.5" bay is screw-less in design and supports two 2.5" SATA HDD/SDD no larger than 9.5MM. It is compatible with four RAID modes (PM, BIG, RAID 0 and RAID 1) which can be set either on the converter itself or via software found on the Icy Dock website. Its included instruction manual has detailed information on how to set up you RAID array and by following the detailed steps, even a novice can set up its functions in a matter of minutes in both Windows or MAC.