Can someone clarify PCIe terminology of the B450 TOMAHAWK

Can someone clarify PCIe terminology of the B450 TOMAHAWK pcie 3 0 x1 slot Hi I have a ROG Strix X570-E Motherboard and all 8-Sata Ports are in use My 3 x PCIe x4 Slots are not available There are two PCIe pcie slot width NICs work well in x1 slots, especially the single-port 1G or dual-port 1G Quad-port 1G won't be able to fully saturate all 4 ports at the

pcie slot width 1 x PCIe x16 PCIe x16 2 x PCIe x16 1 x PCIe x16 PCIe x1 5 x PCIe x1 3 x PCIe x1 2 x PCIe x1 1 x PCIe

pcie slot cover Slot power · x1 cards are limited to A at +12 V and 10 W combined · x4 and wider cards are limited to A at +12 V and 25 W combined · A full- It looks like the PCIE x1 can do MBs I plan to use them only for Unassigned devices Every thing I find is PCIE and uses one of