Features: The product only supports SFF-8639 interfaces SSD or SFF-8639 interfaces SSD. If your Motherboards is not DDR4 or DDR5 memory, you generally need to add NVMe boot module to support NVMe M.2 hard disk as system disk. The adapter card is inserted into the PCIe interfaces of your Motherboards correctly. If it is inserted incorrectly, it may burn the adapter card and Motherboards. This adapter not support SFF-8639 interfaces SSD. Whether editing 4K video, managing large databases, or enhancing your gaming, this adapter provide integration for using M.2 SSD in desktops and workstations. Specifications: Component:Metal Size:Approx.117x81x5mm/4.6x3.18x Package Includes: 1Pc Expansion Card note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.