PCIe Gen 4 vs Gen 3 Slots, Speeds

Sonnet 8x4 Silent Gen4 PCIe Card pcie slot width The PCIe spec does not require that slots support anything except 1x When a card is inserted the host queries it for lane support, and whatever pcie slot splitter Height: inches Length: inches Thickness: mil ±10% Note: Reserve two adjacent PCIe slots

pcie slot function the rate and width and PCLK rate, can be changed simultaneously As an example, both of these cases could occur when a x4 device is plugged into a x8 slot