Samsung’s 990 EVO SSD could support both PCIe 4.0 x4 and PCIe 5.0 x2 | The 990 EVO will be Samsung’s first new mid-range consumer SSD launch in nearly five years
Source: techspot.com
https://www.techspot.com/news/101439-samsung-990-evo-ssd-could-support-both-pcie.html