USB 3.0 Hub Enumeration Stress

This test verifies that a USB 3.0 hub does not turn off SuperSpeed termination on downstream ports, when overcurrent or port-reset events occur. The test stresses enumeration of the hub under test and verifies that the hub, as well as a downstream peripheral, enumerate properly. The downstream peripheral must remain on the SuperSpeed bus and not switch to high speed.


This test applies to USB 3.0 hubs only. The test automatically passes for non-SuperSpeed capable hubs.


Test details

Associated requirements


See the device hardware requirements.


Windows RT (ARM-based) Windows 8 (x64) Windows 8 (x86) Windows Server 2012 (x64) Windows RT 8.1 Windows 8.1 x64 Windows 8.1 x86 Windows Server 2012 R2

Expected run time

~2 minutes


Certification Functional




Running the test

Before you run the test, complete the test setup as described in the test requirements: USB Device.Connectivity Testing Prerequisites.

Additionally, this test requires that a SuperSpeed capable device (not a hub) is attached to one of the downstream ports of the USB hub under test.


For troubleshooting information, see Troubleshooting Device.Connectivity Testing.



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