Fangrui Product Details Pcie Sata3.0 Array Expansion Card With Four Sata Gen Iii 6gb/s Channel Host Controllers, Providing Server-level Functions For Desktop Computers. This Adapter Supports The Use Of The Industrys Newest And Fastest 6gb/s Hard Drives, While Providing Backward Compatibility With Traditional Sata1.5gb/s, Sata 3gb/s Drives. It Will Enhance System Performance For Every Type Of Computer User. Each Pci-express 2.0 Channel Provides Up To 500mb/s Throughput. Using The Raid Function, The Sata Connected To This Controller Can Be Easily Configured As 4 Independent Ports By The Driver Without Raid Function. Main Control Chip: Marvell 9215 Bus Rate: 5gbps Bus Specification: Pci-e 2.0 X1 Interface Specification: Sata3 7pin*4 Interface Speed: About 400mb/s Support Interface: Pci Express Slot Support System: Windows, Synology, Liunx, Formac, Nas, Etc. 1. Marvell 88se9215 Chip 2. 4 Internal Sata 6gb/s Ports 3. Compliant With Pci-express Specification V1.0 4. Compliant With Serial Ata Specification 3.0 5. Supports Communicati