1. The standalone expansion card cannot be used with a regular SATA port. Using a regular SATA port will only recognize one drive! Do not even think about using it directly with the motherboard's SATA port! It must be the dedicated matching card that comes with it (using the SATA port converted by the ASM1061, ASM1064, or ASM1166 chip) to work! 2. It's only tested with the USB 3.0 to SATA converter board we provide with PM functionality! Important points to note before purchasing: 1. This adapter card only supports use with SATA ports with PM functionality, not motherboard SATA ports! It is recommended for use with PCIe to SATA expansion ports using ASM chips (such as the ASM1064, ASM1166, etc.). If using a PCIe to SATA converter card using a JMS chip, you will need to install a driver under Windows. If you are using other operating systems, using the JMS converter card is not recommended. 2. Please note that if using a PCIe to SATA converter card using the ASM1061 chip, you will also need to install a driver under Windows. 3. Whether it can be used as a system drive depends on your motherboard, not the adapter card. 4. Only SATA hard drives are supported; SAS hard drives are not supported! 5. Our store has only tested under WIN8 WIN10 WIN11 systems, and other operating systems have not been tested. Color: Black Material: PCB+Plastic Package Contents: 1 * Expansion card 1 * USB 3.0 board with PM functionality 1 * Data cable