PCIe NVMe SSD on PCIe slot-Worth it?

I do have the option as my motherboard has 4 nvme slots to use another slot but it will use 4x pcie chipset lanes but I know that reduces

Use your slot directly connected to the CPU first, and other slots second

what slot machines payout the most often The top slot which my older gen 3 drive is in is the one that has dedicated PCIE lanes direct to the CPU from the NVME slot though and is the

what does a m2 slot look like NVMe port, opening up the possibility of using lightning-fast NVMe SSDs on your system