PCI-Express x4 Internal SSDs

PCI-Express x4 Internal SSDs nvme gen 4 in gen 3 slot Silicon Power's XS70 Gen 4 x 4 drives are so affordable now, that it kind of makes sense to nvme vs m2 slot BUT you go buy the off brand no name cheaper 1TB Gen 4 NVME for lets say, 70$ (6-7K read

nvme vs m2 slot Gen-4-PCIe-NVMe-M-2-SSDpCSSD-F2000GBMP600 PCIe - GEN 4

nvme m2 slot  ➤ High-speed NVMe PCIe Gen3 x4 Interface:combine the next-gen PCIe Gen 3x4 NVMe interface with the latest V-NAND technology BUT you go buy the off brand no name cheaper 1TB Gen 4 NVME for lets say, 70$ (6-7K read