You might have seen x16 to four NVMe slot ... fire hazard in practice, if your PCIe card happens to consume a bit more power than the adapter’s cheaply made SATA power connector can handle.

This is the maximum amount specified by the PCI Express standard for a x16 slot (PCIe 4.0 and 5.0 spec). If a graphics card requires more power, it will typically have additional power connectors ...

PCI Express (PCIe) has been around since ... has meant that there was no need for a specialized graphics card slot, using e.g. an x16 PCIe slot with 16 lanes. It does however mean we’re using ...

So GIGABYTE just dropped their new B760 GEN5 motherboards, and the big headline here is full PCIe Gen5 x16 support across the board.