The ATTO ESAS-R380-000 SAS Raid Controller low profile RAID Adapter provides SAS/SATA II connectivity and delivers blazing fast performance with transfer rates of up to3-Gb per second per port. Featuring integrated RAID support, 8 external ports and latest bus technology, PCI Express. ExpressSAS R380 is engineered for the most demanding digital media and IT server applications.The Easy-to-use GUI based utility enables RAID management, monitoring, and configuration. ATTO also incorporates it's exclusive Advanced Data Streaming (ADS) technology to meet the most demanding performance requirements. With ADS Technology data is moved faster and more efficiently with reduced CPU utilization.