Features: ASM1061 pciexpress SATA3 expansion card can use the latest and fastest 6Gb/s hard disk in the industry. At the same time, it is backward for traditional SATAs 1.5Gb/s or SATAs 3Gb/s drives. It uses the same cables and connectors as previous generations of SATAs to simplify integration. ASM1061 pciexpress is single-chip SATAs expansion card, from pciexpress to two SATAIII 6Gb/s channel host controllers, providing server-levels functions for desktop computers. In addition, pciexpress2.0 has 2times the bandwidth of the existing pciexpress bus, enabling faster data throughput. It will enhances systems performances for every type of computer user. Each pciexpress 2.0 channel can provide up to 500MB/s throughput. It is also backward for the previous generation pciexpress 1.0 technology. pciexpress requires a slot of 2.0 or highly. The speed of V1.0 will not exceeded 250M. Whether pciexpress is X16, as long as it is the 2.0 version, the X16 slot can be directly inserted into the X16 slot. Motherboard BOIS setting: SATAs mode should be changed to AHCI, although some motherboard PCIE is version 2.0, but BOIS does not enable high-speed transmission mode by default (high speed mode) needs to be manually turned on. Specifications: Chip: ASM1061 Data speed: 6000Mbps PCB Size: 67x68mm colour:Black materials:ABS+Metal Package Includes: 1PC PCIE SATA3.0 Expansion Card note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.