The new enterprise-class 12Gbps SAS-enabled, 40GbE-ready rackmount NAS is powered by quad-core Intel Xeon processors and available in 24, 16, 15 and 12-bay models.
http://www.notebookcheck.net/QNAP-TVS-ECx80U-SAS-RP-series-NAS-now-available.150783.0.html