While PCIe 5.0 is starting to roll out, PCIe 4.0 still serves as a great upgrade for many, and picking up a PCIe 4.0 SSD is significantly cheaper. This week, Corsair is adding two more M.2 SSDs to its PCIe 4.0 line-up – the MP600 GS and MP600 PRO NH. The MP600 PRO NH is a …