The device identifiers VID_346D&PID_5678 correspond to the N Computing L300 (and similar L-series) thin client terminals.
This guide provides a comprehensive technical paper on the current state of driver support for this legacy hardware, including an analysis of the "patched" driver landscape, the architecture of the device, and best practices for deployment.
Many devices using this VID/PID are clones of popular chips (e.g., FTDI, CP210x, CH340). Manufacturers often reuse IDs improperly, leading to driver signature conflicts. vid 346d pid 5678 best patched
For users of devices identified by VID 346D PID 5678, having the best patched solution means ensuring that their device's driver and firmware are up-to-date. This can involve:
Before patching, ensure you aren't fixing the wrong thing. Right-click the unknown device > Properties > Details > Hardware Ids. The device identifiers VID_346D&PID_5678 correspond to the N
If your device shows VID 346D PID 5678, do not waste time with the default Windows driver. The best patched driver is overwhelmingly the modified CH340/CH341 driver (version 3.8 or later), installed after temporarily disabling signature enforcement. For non-serial devices, use Zadig’s WinUSB patch.
Final checklist:
Once patched, your device will run as reliably as any first-party peripheral.
Need the actual driver file? Due to safety and copyright, this article doesn’t host binaries, but searching "VID_346D" "PID_5678" patched driver github will lead you to verified repositories. Why Does VID 346D PID 5678 Need a “Patched” Driver
Last updated: 2025. Verified on Windows 11 23H2 and Ubuntu 24.04.