1) This product requires your computer to support PCLE X4 NVMe M. 2 NGFF SSD interface to use it!; 2) PCIE X2 and SATA protocol M. 2 interface cannot be used!; 3) The card transmits PCI Express 4.0 signals using the NVMe protocol.; 4) Data transfer rate up to 64Gbps, Supports NVM Express (NVMe) 1.2.; 5) It can be connected e. g. one SSD or eGPU Graphics Card by using an optional cable.