Help Understanding PCIE lanes and usages, it REALLY hurts my

PCIe x16 Slots pcie 5 0 x16 slot PCIE lanes for 40 Gigabits per seconds worth of NICS? Each PCIE lane will give 4GBps or 32 Gigabits per second There are also PCIE NICS with 2 or 4 pcie slot length It is a PCIe x 16 card A modern 12th generation motherboard will support PCIe x 16 Can he plug the PCIe x 16 graphics card into

pcie x32 slot 4U rugged GPU accelerator · Up to 16 PCIe x16 slots · PCIe Gen5 x16 · PCIe x16 host connections · 2x 1600W load sharing power supplies · Prod No