Reletech P400 Pro Q 1TB NVMe PCIe 4.0 M.2 2280 Internal SSD Maximum Performance Solid State Drive R/W 5000/1900 MB/s Gaming PCI-E Gen 4X4 NVMe (RT-P400Q-1TB) - Newegg.com
I bought the new Samsung 980 Pro 1TB (PCIe 4.0) and put in the Lenovo Yoga Slim 7 (PCIe 3.0), I saw only ~10% decrease in raw performance : r/AMDLaptops
Samsung 980 PRO MZ-V8P1T0B - solid state drive - 1 TB - PCI Express 4.0 x4 (NVMe) | Dell USA
1 TB PCIe 4.0 NVMe SSDs get considerable price slashes, now available for only US$200 - NotebookCheck.net News
SAMSUNG 980 PRO SSD 1TB PCIe 4.0 NVMe Gen 4 Gaming M.2 Internal Solid State Hard Drive Memory Card, Maximum Speed, Thermal Control, MZ-V8P1T0B : Electronics