The M.2 NVMe SSD PCIe x4 Adapter offers the fastest boot or data access possible via the PCIe interface. It provides the link between PCIe 4 lanes of data path straight to the NVMe SSD resulting in super-fast data transfer. This adapter allows for flexible installation of an M.2 (NGFF) NVMe or PCIe AHCI SSD of different size like 42, 60, or 80mm in length with varying capacity. This M.2 adapter will give you the best performance possible for your system.