Sans Digital EliteSTOR ES632X12 - 6U 32 Bay 12G SAS/SATA to SAS JBOD with 12G SAS Expander Rackmount 12Gb/s SAS Expander Technology- Connect32 SAS or SATA drives with onlyonesingle SFF-8644 to 8644 HD Mini-.SAS cable to HBA (Host Bus Adapter) or RAID controller. Data Bolt technology -Aggregate bandwidth from 6Gb/s and 3Gb/s hard disk drives and SSD to a 12Gb/s data stream by intelligently buffering data, result in over 50% increase. Superior Performance -With support of SATA 12Gb/s or SAS 12Gb/s hard drives and 48Gb/s of databandwidth, performance can reach over 3,000MB/s in read and write (tested with 12G SAS RAID controller card (ARC-1883X)). Staggering Spin-Up- Built-in staggering spin-up for hard drives during power up. Thus, extending the life /duty cycle of the hard drives and power supply. Wide Range RAID Adapters Support - Compatible with Areca ARC-1883X, LSI SAS Mega RAID, and other industry standard 12G RAID card. Scalability- Supports up to 256 drives daisy-chained together for capacity expansion via SAS expander. All hardware are included Redundant Power Supply- hot-swappable, redundant power is useful for protection against power failure. Power supply status can be easily monitored by the status LED and audiblealarm alert.