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Other World Computing (OWC) has introduced the new Mercury Elite-AL Pro RAID QX2 new desktop RAID system compatible with Macs and PCs. The external RAID hard disk box needs eSATA, FireWire 800, FireWire 400 or USB 2.0 for connecting to a computer and can handle up to four 2TB 3.5-inch hard drives via eSATA therefore it offer maximum storage space up to 8TBh. The front panel selector switch lets you choose between four hardware RAID settings: 0, 1, 5 and 10, as well as a “span” or NRAID setting. However, windows users need to be careful with such large hard drives as it threatens a loss of data on the eSATA interface.