This expansion card is SATA 6Gbps standard and does not support SAS hard disk and SAS backplane,PS1: Only supports PCI-E 4X 8X 16X slots, cannot be inserted into PCI slot and PCI-E 1X 4 MINI SAS ports,Connect 4 SFF8087 to 4-port SATA cables to get 16 SATA interfaces 16 standard SATA3.0 interfaces.Can connect 16 SATA3.0 ports at the same time, support hot swap,Support Native Command Queuing (NCQ),SATA controller supporting AHCI,Does not support hardware RAID, supports soft RAID provided by Synology and other NAS systems Easy Installation: The plug-and-play design ensures easy installation without the need for drivers on most modern operating systems, making it a user-friendly upgrade solution model:PCE16ST-L01 interface:4 SFF-8087 can convert to 16 SATA3.0 Input interface: PCI-E 4X 3.0 (compatible with 4X8X16X) Interface rate: SATA3.0 6Gbps Installation location:PCI-E slot, not compatible with PCI and PCI-E 1X Function introduction:Convert motherboard PCIE signals to 16 SATA ports Support system:for WIN10/11/2003/LINUX Things to note:Does not support SAS hard disk, only supports SATA disk The product appearance and printed words may vary depending on the batch, but this does not affect use Color: As Shown Material: PCB Package Contents: 2 x SATA PCIe Adapter