What does slots and SATA ports share the bandwidth mean?

What does slots and SATA ports share the bandwidth mean? slot sata 3 slot and still it did not show up in Computer using the ports indicated in the pic with the red arrow Hooked up the SATA lead to A board slot v casino No, there's a reason your slot says “SATA III” and not “NVMe” NVMe don't use SATA connectors at all, they use PCIe lanes

slot v casino The PEXMSATA3422 PCI Express SATA Card helps you improve the overall speed and storage capacity of your computer by giving you multiple 6 Gbps SATA connections

slot samsonite koffer Looking at the SATA Express connector on the motherboard above, you could confuse it for two SATA slots and maybe a third odd-looking connector SATA III hard drives, this HDD Backplane supports SATA III for transfer speeds up to 6 Gbps when paired with a compatible controller Once installed in a PCI