Internal logic within the driver that allows the system to treat physical ports as part of a standard USB hierarchy.
The XH-39.0 driver is a brave step forward. The performance gains are measurable, but the stability is typical of a major version release (i.e., keep the old installer handy).
Boot into Safe Mode and roll back the driver:
This driver is not signed for Windows 11 versions prior to 22H2. If you are on an older build, you will need to disable driver signature enforcement temporarily. xh-39.0 driver
If you are searching for this driver due to a in Windows Device Manager, it indicates the driver is missing or corrupted. To resolve this:
The XH-39.0 moniker belongs to internal hardware kits pairing a physical PCIe bridge card with an integrated microcontroller.
Windows XP, Windows 7, Windows 8/8.1, Windows 10, and Windows 11 (32-bit and 64-bit architectures). Comprehensive Step-by-Step Driver Installation Internal logic within the driver that allows the
Some software (e.g., VMWare USB arbitrator, VirtualHere, USB over IP) can conflict with the XH-39.0 driver. Temporarily uninstall such software, reboot, and reinstall the XH-39.0 driver first.
Try a different USB port. XH-series drivers can be sensitive to USB 3.0 vs. USB 2.0 bandwidth differences.
Many users report that even with the correct 2.1.39.0 driver, the uPD720200 chipset is capped around 100-150MB/s, failing to reach true 5Gbps speeds. This is often a limitation of the older chipset's interaction with modern PCI-e lanes rather than a software issue. 3. Update the Firmware Boot into Safe Mode and roll back the
If the above fails, use the hardware ID:
Forcing Windows to strip away cached .inf installation blueprints ensures that underlying hardware configurations can initialize cleanly.
:: Warning: Back up your Registry before executing modifications. :: Target Path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\36fc9e60-c465-11cf-8056-444553540000 Use code with caution. Press Win + R , type regedit , and hit Enter.