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Verifying USB connection speed (USB 3 or USB 2?) - Super User F is for full-speed (12 Mbit s), which can be USB 1 1 or 2 0 When you run USB Device Tree Viewer, you'll see a list of USB Host Controllers (there are 3 on my notebook) You could cycle through each port of the USB Root Hubs attached to these controllers to see what's connected to that port
USB 3. 0 devices not using SuperSpeed - Super User Eventually I found a USB 3 0 SuperSpeed cable, and here are my observations: The port listed in USB view is not the same as the exterior ports that you have on your keyboard I don't know what they do, but depending on which USB cable I plug into my computer, on the same exterior USB port, a different port number appears as used in the USB view
How to detect if a USB port is 3. 0 or 2. 0? - Super User To check whether the USB device itself is USB 2 0 or 3 0, use USB Device Tree Viewer (on a computer) Then disconnect all your USB devices on the computer, and reconnect the USB in question
A USB hub will not function when its connected more than 5 hubs away . . . Additional info based on responses: My USB Hub chain as viewed with USB Tree Viewer when connected to my Surface Book via the Surface Dock: From this I definitely see that there are more than 5 hubs from the root port to the devices at the end It seems that a "single layer" hub at the end would solve the issue
USB A 3. 2 generation 2 and USB C 3. 2 generation 2 ports show as 2. 0 However in USB tree viewer it shows the USB 3 1 extensible host controller with the USB 3 0 root hub expanded, 4 Type A are 3 0 support, then 3 Type A are only 2 0 support and the Type C is only 2 0 support Likewise, if I plug in any USB 3x device with a USB 3x cable in the affected ports, they only get recognized as 2 0
How to achieve USB 3 speeds on USB 3 ports? - Super User 3 I have a relatively new USB 3 hard disk: Seagate 2TB Backup Plus Slim Portable External USB 3 0 Hard Drive (Silver) Also, I have an USB 3 SD card reader Both of these are known to work faster than they do now They perform at 40-45 MB s I use USB Device Tree Viewer V3 1 2 and it tells me these, for both devices:
Determine current USB address of device in Windows The Device Address (x 1 x) and Endpoint ID (x x 1) can be found running USB Device Tree Viewer, selecting the device, and then looking at the device Connection Information
windows 11: is there a limit to the number of USB devices? A tool to examine the number of endpoints (and everything else) on your USB devices is the open-source USB Device Tree Viewer It can show the endpoints used by a device, but doesn't show the limit for the root controller For example, here it is showing 3 endpoints for a connected USB disk: Some sources about the subject :
Is there a way to view the device tree in Windows? - Super User 1 Older versions of the Windows Driver Kit included the "Device Tree" utility from OSR, which David Postill linked It is not claimed to work on Windows 10, and I saw it crash a few Windows OSs that it supposedly did support