What is the difference between PCIe Gen 3 and PCIe Gen 4?

2 NVMe SSDs occupy a single x4 slot]; PCIe x8: expansion cards with 2 PCIe Gen 4, and even Gen 3 NVMe SSD speeds are nothing to scoff at either

Your notebook's NVMe slot is PCIe Gen 3 While a Gen 4 SSD will work, it will only run at the max speed allowed by the Gen 3 slot, which is

nvme slot Support for NVMe drives connected to 940 RAID adapters ; Storage HBAs available; PCIe Gen 3 and Gen 4 adapter choices 8-, 16- and 32-port RAID

nvme pcie 40 in 30 slot Your notebook's NVMe slot is PCIe Gen 3 While a Gen 4 SSD will work, it will only run at the max speed allowed by the Gen 3 slot, which is