1. Brand new and high quality. 2. It is convenient to use. 3. Portable design, light weight. 4. Safely connect it to your 2.5/3.5inch sas hdd devices. Input Interface: SATA 22PIN (7+15PIN) Output Interface: SAS 29PIN Speed: 6Gbps Support System: WIN7,WIN10,WIN11, Linux OS Kind Tips: Only support 2.5/3.5inch SAS HDD SSD, NOT Support U.2 SSD. If the disk is not recognized, try another SATA interface. Installation steps: 1. Turn off the computer and disconnect the power cord. 2. Open the computer case and find the SATA 7PIN slot and SATA15PIN power cable that can be used. 3. Gently insert the adapter card into the SAS hard drive and make sure it is firmly fixed in the hard drive position of the chassis. 4. Insert the SATA cable and the SATA hard drive power cable into the adapter card, and insert the other end of the SATA data cable into the motherboard SATA port. 5. Re-close the computer case and reconnect the 220V power cord. 6. Start the computer and check whether the newly added SATA device is successfully recognized in the operating system. Colour:Black Material:PCB+Plastic Package Contents: 1 x SATA to SAS HDD Expansion Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.