As of 2026, many manufacturers are moving away from proprietary dongles toward Bluetooth LE and USB-C native compatibility. However, VID 346D PID 5678 appears to be "evergreen" – still included in new budget PC combos due to its reliable, low-cost chipset (likely based on a Realtek RTL8762 or a Telink TLSR8271).
Check the device physically for a model number (e.g., "MW-108" or "K520"). Leave that model number in a comment on the manufacturer's forum—it helps the next person searching for the "best" driver. vid 346d pid 5678 best