Features: brand new and high quality for SATA6G,3G and 1.5G hard drives. Supports FIS port - based multiplier switch or command switch. for Comply with SATA 3.0 specification, for SATA2.0 SATA1.0. for Comply with PCI-Express V2.0 specification and is backward for PCI-Express V1.0. If it is determined that the SATA interface installation system of the system disk inserted in the motherboard is AHCI mode, then you can directly insert the hard disk into our card, and then enter the motherboard BIOS to set the system disk as the first boot. Supports Gen 1i, Gen 1x, Gen 2i, Gen 2m, Gen 2x, and Gen 3i. Support AHCI1.0 mode and IDE mode. The SATA interface mode of PCIE to SATA3.0 is AHCI mode. If you want to plug in the system disk on our card, the premise is that your system disk must be installed in AHCI mode when installing the system on the motherboard. Otherwise, it will not pass. Our card riser card starts the system. Specifications: Item Name: Expansion Card Material: Metal Color: Black Size:approx 80x70mm/3.15x2.76in Interface: PCI-E 4X 8X 16X Expansion Interface: 5 x SATA3.0 interfaces Bus Interface: PCI-Express X2 Gen3 Slot (PCI-E X2 Signal, interface is X4) Supported system: Win7, Win8, Win10, Linux Note: There might be little error of size for manual measurement. The colors deviation might differ due to different monitor settings, please kindly understand. Package includes: 1 x Expansion Card