I'm using a Fantec QB-35U31 HDD case that supports 4 SATA devices over a single USB 3.2 connection. Running Windows 11 25H2 on an Asus Z690-i with a 13600k.
I've been using this case with 3 SATA drives for the past 5+ years with no issues. It doesn't use any proprietary drivers or softwares.
Recently, I suddenly have one, sometimes two unknown USB devices show up in my device manager.
They show up as Unknown USB Device (Device Descriptor Request Failed) and Unknown USB Device (Port Reset Failed).

When I unplug the USB case, they disappear. However, the case is still working fine. I'm able to use all four drives (added a fourth for testing), I'm getting the full speed, no read or write errors, all great.
If I run Linux on the same machine, no strange devices or device errors appear. No entries in the event viewer, either.
Anyone have any idea what this could be?
I've been using this case with 3 SATA drives for the past 5+ years with no issues. It doesn't use any proprietary drivers or softwares.
Recently, I suddenly have one, sometimes two unknown USB devices show up in my device manager.
They show up as Unknown USB Device (Device Descriptor Request Failed) and Unknown USB Device (Port Reset Failed).
When I unplug the USB case, they disappear. However, the case is still working fine. I'm able to use all four drives (added a fourth for testing), I'm getting the full speed, no read or write errors, all great.
If I run Linux on the same machine, no strange devices or device errors appear. No entries in the event viewer, either.
Anyone have any idea what this could be?
- Windows Build/Version
- Win 11 26200.7623
My Computer
System One
-
- OS
- Win 11 25H2
- Computer type
- PC/Desktop
- CPU
- Intel 13600k
- Motherboard
- Asus Z690-I
- Memory
- Kingston Fury DDR5-6000
- Graphics Card(s)
- Gainward 4080 Phantom GS




