For basic RAID functionality that is independent of the host & operating system, plus high bandwidth for I/O applications in a controller designed for entry-level storage solutions, choose Adaptec. The Adaptec RAID 2405 is equipped with the enhanced reliability of hardware RAID 0, 1 & 10, industry-leading dual core RAID on Chip (ROC) & 128MB of DDR2 cache. Four internal ports in this Unified Serial controller allow you to connect up to 128 SATA/SAS devices through SAS expanders. Adaptec Storage Manager provides one-view centralized management of all your Adaptec RAID controllers. The Adaptec RAID 2405 also integrates the latest PCIe connectivity, the broadest operating system support, including open source Linux drivers, & proven compatibility.