Features:
For optimal performance, use a SATA 3.0 data cable.
The PCI-E slot must be version 2.0 or above. If using version 1.0, the speed will not exceed 250 MB/s. As long as it is version 2.0, the PCI-E slot can be either x1 or x16.
After inserting the card, you can check its operating mode, "gen1" indicates it is working in 1.0 mode, while "gen2" indicates 2.0 mode.
Motherboard BIOS settings, The SATA mode must be set to AHCI. Some motherboards, even with PCI-E version 2.0, may not have the high-speed transmission mode (gen2 high-speed mode) enabled by default in the BIOS and may require manual activation.
Supported data transfer speeds up to 6.0Gbps, 3.0Gbps, and 1.5Gbps.

Specifications:
Chipset: For ASM1061
Product Interface: 2*SATA + 2* ESATA
Slots: PCI-E X1 (Compatible X4 X8 X16)
Supports ATAPI devices: CD-ROM, DVD-ROM, etc
Driver supports: Fit for Wins XP/Server 2003/Server 2008/ for Vista/ for Win7/ 8/ 10

Package include:
1 x PCI-E Express SATA3 SATA3.0 6Gb/s eSATA SATA III Card