I have USB hub 3 version. An external USB 3.0 drive and a USB 1.1 mouse are also connected to it - does this mean that the drive does not work on 3, but on 1.1?

Question

USB

That is, I read somewhere that if devices with different USB versions are connected to a USB hub, then it works according to the lowest protocol - is that so?

Or do you mean exactly data storage devices, and the mouse and keyboard do not count?

In general, is it possible, for example, under Ubuntu to somehow look at what specific version of the protocol the hard drive is currently working on?

upd.: Here is the output of lsusb



, does this mean that the disk (transcend) still works on USB 3.0?

Answer 1

no, the disk works on 3.0 or 2.0, otherwise you would have a speed of less than a megabyte per second
, it's hard to see, the second answer is from here
https://superuser.com/questions/781398/how-can-ib...

Answer 2

the USB port into which the hub is inserted will work on the minimum version of all connected devices, inside there is broadcast control, the mouse will not be able to understand how to pack packets in the usb3 standard if it can slow usb1, here is the answer to this question,
but there are hubs that are for Each port has its own translator and allows you to repackage packets from braking devices in a high-speed standard.
I don’t know how to determine this before buying a hub without checking.