Adaptec 2258100-R 5405 RAID 4-Channel SATA/SAS 256MB-BRWH-B0015DRUXQ

From the ManufacturerWith an industry-leading dual core RAID on Chip (ROC), DDR2 533MHz write cache, support for up to 256 SATA/SAS devices (using SAS expanders), and an x8 PCI Express host interface bus connection, the Series 5 controllers delivers impressive performance numbers -- over 250,000 I/Os and 1.2GB/s. These controllers are ideal for enterprise-class storage applications that call for maximum performance, scalability and flexibility.The Adaptec RAID 5405 utilizes industry-leading dual core RAID on Chip (ROC), 256MB of DDR2 write cache, and connectivity with the latest x8 PCI-Express to deliver over 250,000 I/Os 1.2GB. Using SAS expanders, it can connect up to 256 SATA/SAS devices.The Adaptec RAID 5405 supports a broad range of operating systems, compatibility with more than 300 third-party devices, and full integration with Adaptec Storage Manager for centralized management of all Adaptec RAID controllers on the network. Highest PerformanceSeries 5 controllers deliver speeds