The CH340 driver is maintained by WCH (Nanjing Qinheng Microelectronics). Download directly from the official source:
Yes. On Linux, the ch341 driver is built into the kernel (modprobe ch341). On macOS, use the open-source CH34x driver from GitHub.
Because these devices are "plug-and-play" on some systems but not others, finding the correct driver is essential for achieving the advertised 10/100 Mbps speeds and maintaining a stable connection. Identifying Your JP1081B Adapter jp1081b no 9700 driver download
and point it to the folder where you extracted the downloaded files. Verification: Once installed, the device should move to the Network adapters section and be labeled as RD9700 USB2.0 To Fast Ethernet Adapter Microsoft Learn This adapter is limited to Fast Ethernet (100Mbps) speeds and uses USB 1.1 or 2.0 protocols. Hardware ID to ensure you have the exact matching driver? usb-2-10-100m-ethernet-adapter-rd9700/README.md at master
The quest for a leads many users into a maze of fake driver websites and wasted hours. Now you know the truth: it is almost certainly a CH340-based serial adapter, and the official driver from WCH ( CH341SER.EXE ) is all you need. The CH340 driver is maintained by WCH (Nanjing
Official manufacturers rarely provide support for these generic devices. As a result, users turn to third-party driver websites—many of which bundle adware, spyware, or outdated drivers that cause Blue Screens of Death (BSOD) on modern Windows versions.
The remaining 10% show VID_067B (Prolific). On macOS, use the open-source CH34x driver from GitHub
When downloading drivers, users often encounter issues such as:
If the automatic installer fails, follow these manual steps to force the driver installation: