USB Flash Drive Speed Tests - VID = 346d, PID = 5678 - NirSoft
: Use the H2testw utility to verify the true capacity of the drive. It writes data until the drive is full to check if the reported size is fake.
: If the device is not recognized, you can manually update the "USB Mass Storage Device" entry in the Windows Device Manager . Summary Table: VID 346D / PID 5678 vid 346d pid 5678 best
" devices. These identifiers are commonly associated with the or controllers.
: For drives that are corrupted or showing incorrect sizes, the FirstChip MpTools (e.g., version V1.0.5.2) is the primary software for flashing the controller and restoring the true factory capacity. USB Flash Drive Speed Tests - VID =
: Most generic versions achieve read speeds of 18–24 MB/s and write speeds of 4–7 MB/s . High-End Variations : Some models, such as the Samsung MUF-16BE
The USB identification and PID 5678 typically refers to generic flash drives often marketed as " VendorCo ProductCode " or " Disk 2.0 Summary Table: VID 346D / PID 5678 " devices
, can reach read speeds of up to and write speeds near 18 MB/s .