xx1 slot

A PCIe x1 slot is used to plug in low-demanding PCIe expansion cards that do not have a very high throughput (transfer rate), such as Network Adapters, Port Expansion Cards, Sound Cards, and Certain Riser Cards. 5 unsur slot PCIe x1 slot offers only one PCIe lane and thus has the lowest throughput (speed in layperson’s terms) of the PCIe slots out there . gns slot