Inquiries about USB ports and controllers on a motherboard
Inquiries about USB ports and controllers on a motherboard
Multiple ports connect to the same hub, yet each port has its own bandwidth—though this will also overlap with the chipset if linked there. I have two external 4xHDD boxes for my NAS backup, and since they’re on separate buses, they don’t interfere with each other.
I try to stay positive even when I get caught up in details about my PCs and power supplies. It’s the same with me—wanting a super-efficient setup is part of who I am. But I need to figure out how to turn that hobby into something worthwhile...
The USB controller manages data flow and device communication, while the USB bus is the physical pathway for transmitting signals between devices. You can connect multiple USB devices to different controllers but still share the same bus if they're linked through a common interface. If each controller has its own bus, ports connected directly to the chipset will depend on the specific controller's configuration.
It seems there might be some confusion about the setup. Generally, all components on the same hub share USB bandwidth, and the same controller handles PCIe connections. While it’s possible to have multiple USB controllers on different PCIe ports, this isn’t always the standard. On AMD systems, USB 2.0 isn’t typically listed separately—it’s included in the USB 3.10 host controller. Checking Device Manager by selecting USB Host Controller can help identify connected devices and their ports. If you have a 5Gbps port and higher speeds available, it likely indicates different controllers are being used.