Lenovo ThinkSystem 930-8e - Storage controller (RAID) - 8 Channel - SATA / SAS 12Gb/s - RAID RAID 0, 1, 5, 6, 10, 50, JBOD, 60 - PCIe 3.0 x8 - for ThinkSystem SR250, SR645, SR650 V2, SR665, SR670 V2, SR850 V2, ST250, ST50, ST650 V2

The ThinkSystem RAID 930-8e External RAID Adapter is a high-performance 12 Gbps SAS RAID-on-chip (ROC) adapter for connectivity to external disk enclosures. The adapter comes standard with 4 GB of cache, supports RAID levels 0, 1, 10, 5, 50, 6 and 60, and includes an extensive list of RAS and management features.