Sans Digital has unveiled its latest RAID storage device, the 4-bay MR4UT enclosure. A RAID controller and 400MB per second I/O processor are integrated into the housing, eliminating the need for separate hardware or drivers. Users can configure the drives as RAID 0, 1, 0+1, 3, 5 or JBOD arrays, with the option to keep one drive as a hot spare to be used if an active drive fails. The HDD trays support 3.5-inch hot-swappable SATA I and SATA II drives, with write speeds claimed to reach 210MB per second and write speeds of 170MB per second via eSATA connections, with lower speeds when using the USB 2.0 interface.

RAID options can be configured from the built-in LCD display, or by using the embedded IP-based Web interface. The total capacity reaches up to 6TB when using 1.5TB drives. The controller works around the 2TB per volume limitation of some operating systems by allowing the drives to be divided into four sets of RAID volumes.

The MR4UT is now available without drives, for $830, while the 2TB, 3TB, 4TB, and 6TB configurations are priced at $1,270, $1,530, $1,730, and $1,990, respectively.