Internal Connectors: 3 x mini-SAS RAID: RAID 0/1/3/5/6/10/50 and JBOD Cache Memory: 256 MB of DDR II memory with ECC protection Operating Systems Supported: Windows (2000, XP, x64), 2003, 2008 and Vista (32 and 64) BIT) Linux FreeBSD Mac OS X 10.4.x & 10.5.x GPL licensed driver into Linux Kernel 2.6.25 Features: TerabyteStream for Blazing Performance Intel IOP 81341(800MHz) RocketRAID 3530 supports up to 12 SATA II drives Multi adapter support up to 4 adapters ?Intel RAID 6 (P+Q) for large capacity RAID arrays ?NVRAM for write journaling ?Battery Backup Unit (BBU) Optional ?RoHS compliant Parts: 3 years limited Labor: 3 years limited