Final answer:
CPUs have limited PCIe lanes, but motherboards use switches or hubs to share those lanes among multiple PCIe slots, allowing more devices to be connected than the number of CPU-provided lanes.
Step-by-step explanation:
The correct answer is option Computers and Technology. CPUs do indeed have a limited number of PCIe lanes, but motherboards can support additional PCIe slots by using switches or hubs that allow the lanes to be shared among multiple slots.
This technology effectively multiplies the usability of the available lanes and enables the connection of more devices than there are individual lanes provided by the CPU
For instance, a single PCIe lane can be split into multiple connections for slots that require fewer lanes, such as PCIe x1 slots typically used for sound cards or network adapters.
However, when more devices are connected, the available bandwidth is divided between them, which can reduce performance if multiple high-bandwidth devices are used simultaneously. The motherboard chipset can also provide additional PCIe lanes to further increase expandability.