Supporting up to 8 SATA II and SATA I hard drives, the Highpoint RocketRAID 2320 PCI-e controller card is perfect for entry-level storage servers. Supporting RAID 0, 1, 5, 10, and JBOD, it can not only backup data but can also extend the storage capacity of a system significantly. Featuring a PCI-Express x4 (with support for x8 and x16) compatibility it's one of the few PCIe controller cards available. Providing S.M.A.R.T drive monitoring for status and reliability, hot swap and hot spare drive storage, Native Command Queuing support, and web based RAID software, the 2320 is perfect for small to medium size business IT environments. The RocketRAID card can also automatically rebuild the RAID array if a drive fails. Last but not least the 2320 supports a variety of operating systems including the following: Windows, Windows x64 Editions, Mac OS X, Linux (open source) and FreeBSD (open source). Internal Connectors: 8 x SATA II Transfer Rate: Up to 300MB/s for each SATA II drive port RAID: RAID 0/1/5/10/50 JBOD Operating Systems Supported: Microsoft Windows 2008/2003/XP/ 2000/x64 Edition/Vista 32 and 64 bit Linux FreeBSD GPL Licensed Linux Open Source Driver into Kernel 2.6.25 Dimensions: 6.3" x 2.6" Features: Online Capacity Expansion and Online RAID Level Migration (OCE/ORLM) Native Command Queuing (NCQ) SAF-TE enclosure management Hard drive activity and Failed LED support Staggered drive spin-up support Hot swap and hot spare Write-through and write-back cache support Quick and Background initialization for quick RAID configuration Online array roaming BIOS booting support (INT13) Single RAID Cross Adapter Support 64bit LBA for over 2TB support Automatic RAID rebuild of failed drive S.M....