OWC Mercury Elite Pro Qx2 Hard Drive Enclosures (eSATA, 2x FireWire 800 & USB 3.0)

The Ultimate Blend of Professional Performance and Convenience Install your own set of four matched (same part number) 3.5" Serial ATA (SATA I/II) hard disk drives into this brushed aluminum enclosure with Hardware RAID setting flexibility and experience up to 300MB/s data transfer speed for high performance data storage and redundancy. User-Selectable Hardware RAID Settings Thanks to a front panel selector switch, the Mercury Elite Pro Qx2 enables easy configuration of the hardware RAID settings to Span, 0, 1, 5, 10, and JBOD/Independent drive modes – so you can select the best combination of speed, capacity, redundancy. Span Combines the capacity of two or more drives of the same size without any RAID data distribution scheme into one logical desktop volume. This mode can combine the capacity of varying size drives based on the lowest capacity drive in the set. RAID 0 (Stripe) Data is split into blocks over two or more drives at same time for high speed and large capacity. The ideal RAID setting for demanding video production/editing. RAID 1 (Mirror) The same data is written to two drives for highest level of data safety and redundancy. RAID 5 (Stripe with Parity) Data is Striped (RAID 0) while incorporating redundancy over three or more drives for the best combination for speed, capacity, and redundancy. The Multi-Interface 4 Bay Enterprise Class Performance RAID Solutions are pre-configured as RAID 5. RAID 10 (1+0) Data is Striped (RAID 0) over two Mirrored sets (RAID 1) of drives for fast redundancy. JBOD/Independent drive operation Each drive mounts as an individual volume.