Vid 346d Pid 5678 Best Verified Jun 2026

Some users have found that formatting these drives with exFAT rather than the default FAT32 can slightly increase transfer performance.

If your drive is showing "Write Protected," "No Media," or incorrect capacity, you need the Mass Production Tool (MpTool) specific to your controller: For FirstChip Controllers: The most reliable source for these tools is , which hosts verified versions like FirstChip MpTools Selection: vid 346d pid 5678 best verified

Often listed as VendorCo , Generic , or USB . Controller: Typically a FirstChip FC1178BC . Some users have found that formatting these drives