The Apple Mac Pro RAID Card allows you to connect a high power RAID storage drive to your Mac, giving you much improved storage capability and thus greater capacity to protect the data on your computer.
The Mac Pro RAID Card uses the top PCI-Express slot on your early 2009 Mac Pro and allows you to connect 15,000RPM SAS drives. It can support RAID levels 0,1,5,0+1 and Enhanced JBOD and provides up to 553MB/s performance at RAID 0, making it ideal for creative professionals needing video and audio storage as well as for server applications.