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.