Integral 256GB M.2 NVMe 2242 PCIe Gen3 x4 SSD – READ speed up to 2400MB/s, WRITE speed up to 1100MB/s – Internal Solid State Drive. PC, NUC, Ultra-thin laptop and tablet compatible :
What is the difference between PCIe Gen 3 X2 and X4 SSDs? Can these two SSDs be used for laptops that support the PCIe interface? - Quora
Integral M.2 PCIe Gen3 x4 NVME (2242) SSD|flexxmemory
PCIE 3.0 Nvme M.2 SSD, Quad Lane Controller PCIE Gen3 X4 Interface 2100MB/s Read Speed 3D TLC NAND Laptop SSD, All in One Design, for Desktop Computers PC (2TB) : Amazon.co.uk: Computers
ASRock Offers Ultra M.2 Gen3 x4 32 Gb/s Socket for Ultimate Transfer Speed | TechPowerUp