Supports data transfer rates of SAS 6.0Gbps, 3.0Gbps, and 1.5Gbps. Offers a throughput of up to 5Gbps when used with a USB 3.0 host and device, 10 times the capability of USB 2.0. Only SFF-8482 SAS hard disks are supported; SFF-8639 U.2 hard disks are not supported. The card requires a 12V/3A DC 5.5x2.1mm plug power supply. The power supply is not included in the package and must be purchased separately if not already owned. This adapter has a built-in chip that converts SAS disks to the USB interface of a standard motherboard, allowing USB computers to use SAS disks without requiring a SAS card. If your USB interface does not support SAS, connecting this adapter enables direct read/write access to SAS hard disks. Compatible with Windows 7, Windows 10, and Windows 11. After conversion, SMART information for the SAS hard disk may display incompletely or not at all, but this does not affect normal read and write operations. Color: Black Material: Plastic Package Contents: 1 x SAS Hard Disk Drive Adapter Note: Only the items listed above are included. Other products are not included. Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3cm.