Integral 1TB M.2 PCIe Gen3 x4 SSD – READ speed up to 3400MB/s, WRITE speed up to 3000MB/s – Internal Solid State Drive. Valve Steam Deck, Microsoft Surface Pro, PC & laptop
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What does PCIE 'gen 3x4' mean for SSDs? - Quora
Integral M.2 PCIe Gen3 x4 NVME (2242) SSD|flexxmemory