alow user to read or write M. 2 nVME SSD in Oculink SFF-8611/8612 of laptop or Machine with Oculink Port. ^^ Supports PCIe 4.. 0 M. 2 nvme SSD in format 2230, 2242, 2260 and 2280 ^^ Type C interface is only for power of nVME SSD, you must connect it with USB A/C port laptop or SATA power of desktop. ^^ No drivers needed for this External Card. ^^ Systerm required WIN 10 or MAC OS 10.13 later.