Struggling to get your USB 2.0 to Fast Ethernet adapter working after upgrading to Windows 11? You are not alone.
Microsoft did not intentionally block the VK-QF9700 in Windows 11, but they deprecated many legacy NDIS 5.1 drivers. The working driver for this chipset is actually a modified version of the driver (Davicom DM9601 USB Ethernet adapter). vk-qf9700 driver windows 11
| Metric | Value | |--------|-------| | Max throughput | ~90-95 Mbps (real-world) | | CPU usage | Moderate (5-15% on a modern CPU) | | Latency | 1-2 ms higher than a built-in NIC | | Wake-on-LAN | Not supported | Struggling to get your USB 2
The is one of the most widely cloned chipset identifiers in the networking world. Found in countless inexpensive USB-to-Ethernet adapters (often branded as "RdLink," "Cable Matters," or generic "USB 2.0 to RJ45"), this chipset has been a reliable workhorse for Windows 7, 8, and 10. However, with the release of Windows 11, Microsoft introduced stricter driver signing policies and a revamped network stack. The working driver for this chipset is actually