Available in 24, 16, 15, and 12-bay models, TVS-ECx80U-SAS-RP Series is compatible with 12 Gbps SAS RAID expansion enclosures REXP-1620U-RP and REXP-1220U-RP. Qtier Technology triggers storage auto-tiering, which delivers constant optimization of data across SSD, SAS drives, and SATA disks. Supporting 10 GbE-ready network connectivity, systems are powered by quad-core Intel® Xeon® E3 v3 processor with 16 GB DDR3 or 8 GB DDR3 ECC RAM to deliver up to 3,800+ MBps throughput and 268,100+ IOPS.