Designed specifically for integration into existing high-density storage environments, the DC Series Integration-ready software packages ensure compliance with all major Windows operating systems and Linux Distributions. PCI-Express 2.0 x8 (backwards Compatible with PCI-Express 1.0). SATA 3Gb/s. Supports 3TB hard disks. Directly supports up to 32 internal SATA devices. Industry standard Mini-SAS connectors (SFF-8087). SGPIO support in SFF-8087's side band signals. I2C Interface Support for SAF-TE Application. Auto detection of unplug/plug SATA hard drive. Native Command Queuing (NCQ) for improved random performance. Supports Windows, Linux, FreeBSD. Full-Height form factor.