Intel RAID Controller RS25DB080 a second generation SAS-2/SATA-3 card with eight internal ports delivers two 800MHz processor cores and a 72-bit DDR3 interface that drives 1 GB cache memory. Processor/ RAID on chip - LSI* SAS2208. Memory - 1 GB embedded DDR2 ECC memory. PCI BUS - PCI Express* 2.0 x8. Channels - 8 internal SAS / SATA ports supporting point-to-point 6.0 Gb/s and 3.0 Gb/s data-transfer rates. Form Factor - Low-profile 6.6" length (MD2 compliant). Raid levels - 0 1 5 6 10 50 and 60. Intel Smart Battery Backup Option - AXXRSBBU9 (Not included) - If ordered as FD must be in QTY's of 5.