HighPoint RocketRAID 2224 4-Internal/4-External Channel PCI-X SATA 3Gb/s RAID Controller Direct connect up to 8 hard disks PCI-X 64 bit 133/100/66 MHz (Backward compatible to PCI) 1 Infiniband/ 4 SATA ports RAID 0, 1, 5, 10 and JBOD Support Windows, Linux, FreeBSD and Mac OS X Low Profile