: This is a Fast Ethernet device, meaning it is capped at 100 Mbps . While it won't take full advantage of gigabit fiber connections, it is more than sufficient for high-definition streaming, video conferencing (Zoom/Teams), and general web browsing.
This device is a generic "No-Name" or "Blue" USB-to-Ethernet dongle frequently sold under various brands for laptops, tablets, and the Nintendo Switch.
| Problem | Solution | |---------|----------| | | Try a different USB port (avoid USB hubs). Check if adapter gets warm — if not, USB port may not supply enough power. | | Code 10 (device cannot start) | Uninstall the device from Device Manager, unplug, restart PC, then reconnect. | | Works on one PC but not another | Likely driver signing issue on newer Windows. Disable driver signature enforcement temporarily (Windows 10/11: Shift + Restart → Troubleshoot → Startup Settings → Disable driver signature enforcement). | | Shows as "ASIX" device | Some generic drivers misidentify it. Uninstall ASIX driver and force install DM9601 driver manually. | usb vid-0fe6 amp-pid-9900
The USB device with and Product ID (PID) 9900 is identified as a Corechip SR9900 USB 2.0 to Fast Ethernet Adapter .
For Windows 10/11, try the generic "USB Ethernet/RNDIS Gadget" driver. : This is a Fast Ethernet device, meaning
These adapters are designed for high-performance, cost-effective applications, providing a reliable wired network connection via a standard USB 2.0 port. They are frequently used to replace broken internal network cards or to add a wired connection to devices that do not have one. Technical Specifications and Features Corechip SR9900 Go to product viewer dialog for this item.
Registered to Corechip (sometimes recognized in older Linux legacy databases as ICS Advent). | Problem | Solution | |---------|----------| | |
Connect streaming sticks, Nintendo Switch consoles, or mini-PCs to wired internet. How to Fix the Missing Driver Issue
Since the SR9900 is a USB 2.0 device, its theoretical maximum speed is 480 Mbps. However, the chip itself is designed for 10/100M Ethernet. Real-world tests for this chip show average speeds around 94.7 Mbps , which is standard for a Fast Ethernet (100M) connection.
Requires specialized third-party signed kexts on newer macOS versions. Troubleshooting Common Connection Issues 1. The "Code 10" or "Device Cannot Start" Error