SATA Vs NVME Slot & Difference

There is an unused PCIe slot on the MB, BUT, the GT640 NVidia card covers that slot up Unless someone makes an angled adapter pcie extender?

They are fundamentally different, so a PCIe card won't work in a PCI slot and vice versa On most motherboards, the PCI slots are made of white

sata slot How To Add Extra SATA 3 Ports To Motherboard? SATA 3 Add On PCI Express Card

sata m2 slot It offers a maximum data transfer rate of 6 Gbps, equivalent to approximately 600 MBs SATA III is backward compatible with SATA II and SATA I, allowing SATA