Bundled with RR622 RAID controller card for over 250MB/s of RAID 5 performance. * Supports RAID 0, 1, 10, 5, 5+ spare, spanning and JBOD. * Backward compatible with PCIe 1.0. * Supports online expansion to expand capacity without the need to recreate the RAID volume and erase the existing data. * Built-in real time hard drive health monitoring and e-mail notification for critical events. * Accesses eight hard drives using only two cables. * Supports PC, Linux and MAC OS; including Windows 7 and Snow Leopard.