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.