RocketRAID4320 - 8 Port SAS RAID Controller with World's Fastest IOP348 1.2GHz Processor. SAS Flexibility (SAS and SATA Drives Support). Delivers up to 1000MB/s transfer rates. PCI-e x8. Internal SAS RAID Controller. Compatible with SAS / SATA Drives. RAID 0, 1, 5, 6, 10 and JBOD. Support Windows, Linux, Mac OS X and FreeBSD