You can use NVME SSD with this adapter without M. 2 slot on the motherboard... Up to 3200+ MB/s random Read and 1500+ MB/s Write, blazing faster than USB-A or USB-C interface... Support PCIe X1 / X4 / X8 / X16 slot. DO NOT support M. 2 SATA SSD (Key B).. Come with heat sink and thermal pad, can realize NVME SSD's full potential of its high performance... Please go to the SSD's website and find and install the NVMe driver for Windows/Linux OS if no drives appear in the Device/Disk manage.