Today, it is a troubleshooting relic. If you have one in a drawer, it might save you during a Linux install or retro computing project. But for everyday use, consider recycling it and buying a modern USB 3.0 Gigabit Ethernet adapter (Realtek RTL8153 or ASIX AX88179) for under $15.
This means that in most standard Linux distributions (like Ubuntu, Debian, Fedora, etc.), the device should work . The kernel handles it directly. This is why you'll see many reports of the device working out-of-the-box, particularly on Raspberry Pi systems, where it's often recognized as an "ICS Advent USB 10/100 LAN".
Here is a complete guide to identifying, finding drivers, and troubleshooting this device.
If the downloaded driver does not include an automatic setup (.exe) file, install it manually: Right-click the and select Device Manager . usb vid-0fe6 amp-pid-9900
Windows frequently turns off USB ports to save power, which drops network connections. Open and expand Network adapters .
Despite the native Linux support, some users report issues with random disconnections. A recurring theme in community forums is the adapter disconnecting and reconnecting, especially under load, while still appearing in lsusb .
Understanding Vendor IDs (VID) and Product IDs (PID) simplifies driver discovery and resolves connectivity bottlenecks. 🛠️ Decoding the Hardware Identifier Today, it is a troubleshooting relic
The presence of this hardware ID in many developer forums indicates its widespread use, particularly among hobbyists and system integrators.
Essentially, this device is a cheap, compact USB-to-Ethernet (RJ45) dongle designed to provide wired internet access to laptops, tablets, or desktop computers lacking an internal Ethernet port. Technical Specifications & Performance Expectations
Have a different USB VID/PID? Use the same principles here: identify the vendor (first 4 hex digits after VID) and search for that chipset directly. This means that in most standard Linux distributions
The Corechip SR9900 is a specialized network controller designed to bridge a USB 2.0 interface with a standard 10/100 Mbps Fast Ethernet network.
These adapters are known to run hot. If you lose connection, unplug it for 10 seconds and reinsert.
The hardware ID corresponds directly to the Corechip SR9900 USB 2.0 to Fast Ethernet Adapter