Equipped with 2 SATA3.2 interfaces, in line with PCI-E specification, supports 2 SATA hard drive connections with a transmission rate of up to 6Gbps. Uses JMB582 chip, plug and play without power supply. SATA3.2 high-speed transmission: Two SATA 3.2 ports can transmit up to 6G simultaneously, high-speed and stable without losing connection. Uses PCIE3.1 gold-plated connector for more efficient high-speed and stable transmission, and adapts to PCIEX1x4x16 slots. Compatible with 99% of common systems on the market, Windows XP/Vista/Win8/OS. 99% of common systems can be perfectly compatible, whether it's a regular PC or an office-specific computer, it can run. Product Name: PCI-E to 2-Port SATA 6G Adapter Card Product Interface: 2*SATA6G Interface Supported Systems: Windows XP/Vista/Win8/OS Main Control Chip: JMB582 Applicable Slots: PCI-E (1X, 4X, 8X, 16X) Color: Black Material: PCB Size: 120 x 65 x 55MM Package Contents: 1 x Riser Card. Only the above package contents are included, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.