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Similar to Linux, macOS natively supports this class of USB Ethernet device. It is generally considered driver-free and should work automatically when plugged in.
Extract the contents ( .sys , .inf , and .cat files) to a dedicated folder on your desktop.
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.
This ID is assigned by the USB Implementers Forum to Corechip Semiconductor, Inc. (sometimes associated with ICS Advent or Kontron). Corechip is a well-known manufacturer of low-cost, highly integrated silicon chips used in budget peripherals. usb vid-0fe6 amp-pid-9900
This small and affordable adapter is incredibly useful for many scenarios:
In the era of sleek, ultra-portable laptops and tablets, physical Ethernet ports have become a rarity. While Wi-Fi is convenient, it often lacks the stability, speed, and security required for professional tasks, gaming, or large file transfers. This is where USB to Ethernet adapters come in, and a common chipset found in budget-friendly USB 2.0 to 10/100Mbps Ethernet adapters is the .
When a device with the VID-0FE6 and PID-9900 is connected to a computer, it may require a device driver to function properly. Here are some troubleshooting tips: Similar to Linux, macOS natively supports this class
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.
Assigns the specific configuration to the SR9900 Fast Ethernet architecture.
Most modern versions (Windows 10/11) should detect this automatically as a or Corechip SR9900 device. For Linux users, this device is usually plug-and-play
If your device displays an "Unknown Device" error or code 10/43 in Device Manager, implement these technical fixes: 1. Power Management Conflict
Support varies widely by OS version. Newer macOS versions running on Apple Silicon may require third-party ASIX or Davicom legacy compliance drivers. Step-by-Step Troubleshooting for Connection Issues
This Vendor ID (VID) belongs to Corechip Semiconductor (sometimes listed as ShenZhen Corechip), a manufacturer specialized in USB interface controllers. PID_9900: This Product ID (PID) identifies the specific device as the SR9900 USB 2.0 to Fast Ethernet Adapter Go to product viewer dialog for this item. .
: Go to the device Properties in Device Manager, navigate to the Advanced tab, find Speed & Duplex , and manually change the value from Auto Negotiation to 100 Mbps Full Duplex .