Vid 346d Pid 5678 Best (Top-Rated 2025)
Have you achieved the "best" setup with your VID 346D PID 5678 device? Share your benchmark results and driver versions in the comments below. For further reading, check out our guide on advanced USB descriptor tuning.
Use ChipGenius to confirm the controller vendor (FirstChip) and flash ID before trying to reformat or flash the firmware. FirstChip MpTools
I need to mention the possible vendor. Suppose VID 346D is assigned to a well-known company like Microsoft, but I think Microsoft's VID is 045E. Maybe it's another company. Without exact info, I can note that the vendor ID is 346D, which could be from a company that produces electronic devices, but exact identification requires checking the USB-IF database. Since I can't do that, I'll state that assumption.
Based on community benchmarks from NirSoft's USB Speed Database , users typically see sequential read speeds around 15–30 MB/sec and write speeds between 5–15 MB/sec . Performance can drop significantly when transferring multiple small files.
The generic driver works for office tasks. For gaming or professional use, you need the dedicated driver labeled "best." vid 346d pid 5678 best
FirstChip FC1178BC MpTools V1.0.2.10 2018-04 ... - USBDev.ru
Use a tool like or X-Mouse Button Control . The best driver should register input without spikes over 1000μs.
The true master behind this VID/PID pair is almost universally a controller manufacturer, most often . The evidence for this is strong:
Do not download from random "driver download" websites. Many are malware traps. The three safest sources are: Have you achieved the "best" setup with your
While the official brand is often Teclast (with models like "Teclast CoolFlash"), the VID/PID combination is famous online because it is also used by numerous third-party manufacturers and counterfeit drive producers. This is why you'll see dozens of different brands (like Biwin, Integral, and USAMS) all sharing the exact same VID and PID.
Can reach read speeds of ~35–38 MB/s and write speeds of ~18–28 MB/s. Optimization Tip:
"That was me. And I left a backdoor. Vid 346d is that backdoor. This recording is the key."
The for this device in the future will likely come from the LibUSB open-source project , as Windows starts to embrace generic USB 4 drivers. Use ChipGenius to confirm the controller vendor (FirstChip)
The code refers to the and Product ID (PID) embedded in a USB device's firmware. When you plug a USB drive into a computer, Windows uses these codes to identify the manufacturer and the model to load the correct driver. For the code in question:
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.
This device is typically a budget-friendly storage solution designed for everyday file transfers rather than high-performance tasks.
