ServeRAID-MR10M SAS/SATA Controller is a high performance PCIe RAID Controller for External Direct Attached Storage, including IBM System Storage EXP3000. This RAID adapter provides investment protection by supporting SAS and SATA hard drive configurations, and providing performance enhancements enabled by a standard battery. The battery enables cached data protection during unexpected power outages for ServeRAID-10M, when operating in its higher performance, write back mode.