What are PCIe Slots in PC?

Many People Put This In The Wrong GPU Slot does the pcie slot matter for gpu Yes, the size of a graphics card does matter, especially when it comes to fitting it into your computer case Some high-end graphics cards can be quite large does the pcie slot matter for gpu PCIe NVMe SSD

does ddr5 fit in ddr4 slot Do you have an drive in the top bay ? It shares lanes with the top PCIE slot , so putting an M