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Inside the plastic housing, you will find a chipset. 0FE6:9900 frequently maps to the Davicom DM9601 chip or the Realtek RD9700 chipset. These are low-cost, low-power chips intended for basic 10/100 Mbps Ethernet connectivity. They are not Gigabit adapters. Their drivers are not natively included in modern operating systems, which is why manual intervention is often required.
A word of caution: Because 0FE6:9900 is a generic identifier used by countless no-name Chinese factories, it has been historically abused in BadUSB attacks.
If you have installed software like Zadig or Arduino drivers, they may have hijacked the device. usb vid-0fe6 amp-pid-9900
If Windows doesn’t auto-install:
Apple does not include a native driver for this chip. Third-party options exist but are increasingly unreliable on modern macOS versions (Ventura, Sonoma, Sequoia). Inside the plastic housing, you will find a chipset
For Linux users, this device is usually plug-and-play. The kernel module dm9601 has been stable for years. It registers as a standard eth0 (or enp0s...) interface.
However, don't expect miracles. This is a USB 2.0 device. The maximum theoretical throughput is 480 Mbps, but in practice, the DM9601 chip often tops out significantly lower than that due to overhead. It is fine for browsing, DHCP, and SSH, but don't try to push gigabit traffic through it. If you have installed software like Zadig or
Once the driver is installed, the device usually appears as a webcam source named "AV TO USB" or "SMI Grabber."
Recommended Software:
VLC Media Player (For Testing):
VirtualDub (Legacy Windows):
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