Interesting Question on USB

[kitkat9933]

There is a PC with a USB 3 Port.

Connected to that USB 3 Port is a 4-Way USB 3 Hub (with backward compatibility).

Connected to that USB 3 hub, are three USB 3 Devices and a USB 2 Device.

Now here is the question:

Do the 3 USB-3 Devices and the 1 USB-2 Device, run at USB-2 speeds, constrained to those speeds from the 1 USB-2 Devices ( so the 4 devices share a USB-2 bandwidth). Or do the 4 Devices share a USB-3 bandwidth between them.

 

[cyanide5000]

As far as I'm aware the 4 devices share the USB3 bandwidth between them - otherwise you'd have to plug them each into their own USB port on the PC.

I think the 4 port hubs are more for things that you dont need all the time, or dont need huge amounts of bandwidth - like you could plug a webcam into one port, a storage drive into the other etc.

If you need 3x USB3 bandwidth your going to have to get an expansion card or something

 

[kitkat9933]

As far as I'm aware the 4 devices share the USB3 bandwidth between them - otherwise you'd have to plug them each into their own USB port on the PC.

I think the 4 port hubs are more for things that you dont need all the time, or dont need huge amounts of bandwidth - like you could plug a webcam into one port, a storage drive into the other etc.

If you need 3x USB3 bandwidth your going to have to get an expansion card or something

I'm not after 3x USB-3 Bandwidth. I am after 1 x USB-3 Bandwidth shared between 4 devices.

For instance if I have a USB-3 => Gigabit Ethernet Adapter + USB-2 Keyboard and USB-2 Mouse. Will all together operate under an overall USB-3 Bandwidth to the host, or will all operate under a overall USB-2 Bandwidth, which if the case would limit the Gigabit Ethernet Adapter.

 

[kitkat9933]

Anyone else got an thoughts? or an actual answer