How do I check the PID and VID of my USB device? - Knowledge Center
The VID_0FE6&PID_9900 identifier is common across several "clone" devices. Before installing drivers, look at the device physically:
Add a wired internet port to thin laptops lacking an RJ45 port. Replace a broken internal network card on a desktop PC.
: Operates as a Fast Ethernet network adapter, delivering max physical data rates of 100 Mbps . usb vid-0fe6 amp-pid-9900
This comprehensive guide covers everything you need to know about the Corechip SR9900
If you are seeing this identifier, you likely own one of the following devices:
Understanding USB VID-0FE6&PID-9900 lets you take control of your hardware setup. It is a reliable and cost-effective chip that bridges modern devices to traditional wired networks. With the right driver approach, you can ensure a stable, high-speed connection for gaming, large file transfers, or everyday browsing. How do I check the PID and VID of my USB device
The identifier corresponds to the Corechip SR9900 USB 2.0 to Fast Ethernet Adapter
: A surprising but common fix is simply turning off the computer's Wi-Fi. At least one user reported that having Wi-Fi enabled while using this USB ethernet adapter caused conflicts, and disabling Wi-Fi resolved the random disconnections completely. This is a simple and effective first troubleshooting step.
If the downloaded driver does not include an automatic setup (.exe) file, install it manually: Right-click the and select Device Manager . Replace a broken internal network card on a desktop PC
In the vast ecosystem of Universal Serial Bus (USB) devices, every piece of hardware—from your mouse to your external hard drive—possesses a unique fingerprint. These fingerprints are known as the and Product ID (PID) . For the average user, these alphanumeric codes remain invisible background noise. However, when a device malfunctions, a driver fails to install, or a mysterious entry appears in Device Manager, strings like USB\VID-0FE6&PID-9900 suddenly become critical.
This article is for informational purposes. The author is not affiliated with Davicom, Realtek, or Microsoft. Always back up your data before installing new drivers.
Windows 10/11 often fail to install the correct driver automatically for these legacy devices, often recognizing them only as a generic "USB 2.0 Device" or "AV TO USB."
: Supported by the sr9900 or dm9601 driver modules. However, some users have reported stability issues (frequent disconnects or limited speeds) with this specific hardware.
For Linux users, the situation is often simpler, but not without its own quirks. This adapter is recognized and driven by a generic driver built into the Linux kernel.