Lenovo 7Y37A01087 Sta Raid ThinkSystem, Host Interface PCI Express 3.0 x8, Controller 12Gb/s SAS, RAID Supported, RAID Levels 0, 1, 10, 5, 50, 6, 60, JBOD, Flash Backed Cache, Cache Memory 4GB, Number of SAS Ports-8, Number of SAS Ports (External)-8, SAS Connector 2 SFF-8644, FF Plug-in Card, Environmentally Friendly. 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.