Sonnet 8x4 Silent Gen4 PCIe Card

How to make NVMe SSD run at PCIe x4?? 2x m 2 ssd slot nvme pcie gen4 Product features: 1 This adapter card uses 4-layer board differential pair routing and connector to support 4X signal NVMe SSD 2xbet slot I used this in my probook 450 g7 laptop, 2tb gen4 nvme for the boot drive and 2 x 2tb gen3

2x m2 ssd slot nvme pcie gen4 You have 2x PCIe gen4 2280 slots and a NVMe SSD up to 1TB is recommended , no issues with the slot under the ribbon