How to connect two drives, each designed for 4 PCIe lanes, to 4

What are the Differences between Gen4 and Gen3 PCIe SSDs? can i use m 2 pcie 4 0 in 3 0 slot As the subsequent iteration of Gen3, Gen4's data transfer rate is twice that of PCIe Gen 3, enabling PCIe Gen 4 devices to transfer data at a faster speed PCIe candy dreams slot For example, most SSDs come in the NVMe form factor, which means they only have access to four lanes At PCIe speeds, that's 8GBs of constant data

can i put a pcie 40 in a 30 slot It might be possible The length may need to be shorter The only thing stopping gen 4 speed is the quality of the cable PCIe does link