Lenovo TP X270 M.2 TRAY (4XF0Q58851) at TigerDirect.com
Samsung Ssd M.2 Pm981 256gb 512gb Solid State Hard Disk M2 Ssd Nvme Pcie 3.0 X4 Nvme Laptop Internal Disco Duro Tlc Pm 981 1tb - Solid State Drives - AliExpress
Genuine Lenovo 00up490 SSD M.2 2280 PCIe NVMe 512gb for sale online | eBay
MSI SPATIUM Series M.2 2280 1TB PCIe Gen3 x4, NVMe 1.3 3D NAND Internal Solid State Drive (SSD) M370 - 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