Users have noted extremely poor "small block" (random) read/write speeds, often as low as 0.7 MB/s . Technical Context & Recovery
If you own a device with this specific ID, here is what community testing and tech resources suggest:
VID 346D PID 5678 Best Verified Solution: Fixing FirstChip USB Drives vid 346d pid 5678 best verified
The identifiers and PID 5678 typically correspond to a VendorCo USB 2.0 Flash Drive , which often uses the FirstChip FC1178BC controller. These drives are frequently used for promotional gifts or sold on marketplaces like AliExpress, sometimes with fake reported capacities. Verified Mass Production & Repair Tools
My logic cores stuttered.
These are generally USB 2.0 devices. Benchmarks typically show read speeds around 19 MB/s and write speeds near 6.5 MB/s .
Trust specialized resources like USBDev.ru and FlashBoot.ru to find the correct version of FirstChip MpTools. Users have noted extremely poor "small block" (random)
To fix write protection, restore the true original storage capacity, or rebuild a corrupted file allocation sector, you must completely reflash the FirstChip controller. Required Tools
: NirSoft's USB Speed Database lists sequential read speeds of roughly 19 MB/Sec and write speeds of 6.5 MB/Sec for the 32GB variant. Verified Mass Production & Repair Tools My logic
