Features. LSI SAS 3108 Raid-on-Chip controller provides SAS 3. 0 compliance, including 12 Gb/s data transfer. Up to 1 GB 1833 MHz cache ECC DDR3 memory to efficiently store data in transition. Unique mezzanine card form factor allows for RAID without using a standard add-in card slot. Advanced management capabilities for enhanced usablity. Optional RAID maintenance-free backup AXXRMFBU5. Optional RAID premium feature keys offer features such as RAID SSD Cache with FastPath I/O and RAID drive encryption management