Top uses of the PCIe 1x slot on your motherboard

pci express x1 slot extender first deposit 100% bonus - x1 slot This will list the maximum rates in bits and bytes respectively PCI-E x1 is rated for 8Gbps MBs Your typical x16 slot Anything A pcie 4 x1 slot is a whole lot of bandwidth and could be used for any pcie card with minimal real world bottleneck GPUs would be

x1 pcie slot 1 additional PCI-Express x1 slot is needed