1Compliant with Serial ATA 3.0 specification, backward compatible with SATA2.0 SATA1.0; PCI-Express v2.0 compliant, backward compatible with PCI-Express v1.0. 2Supports communication speeds of 6.0 Gbps, 3.0 Gbps and 1.5 Gbps; supports Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x, and Gen 3i. 3Supports AHCI1.0 mode and native command queue (NCQ), FIS based on port multiplier switch or command switching and hot plug. 4Compatible with SATA6G, 3G and 1.5G hard drives. 5User with SATA3.0 data cable for best results. Item Type:PCI-E to SATA 3.0 CardModel:PCE8SAT-A01Master: Fit forMarvell 88SE92xx+JMB5XXInterface: PCI-E 1X 2X 4X 8X 16XSupport System:Fit For Windows 7/8/XP/10 Fit For UbuntuExpansion Interface: 8 x SATA3.0 Interfaces 1 x Expansion Card1 x Semi-High Baffle1 x Drive disk 1. PCIE must have a slot above V2.0, V1.0 will not exceed 250M, PCIE can be X1 orX16 as long as it is V2.0 version, there is spare X16 slot directly into X16 slot on.2. BOIS setting of the motherboard: SATA mode should be changed to AHCI, although some motherboard PCIE is version 2.0, but BOIS does not enable highspeed transmission mode by default (gen2 high speed mode) needs to be manually turned on. In PCIE 1.0 mode, only 200 250M, 2.0 mode is below 350400M. If you don't accept it, change the motherboard.3. When the SATA port is used at the same time, it will slow down. It is not suitablefor users who are pursuing speed. It is only used for the extended hard disk interface.