The hardware identifier VID 346D and PID 5678 refers to a generic USB Flash Drive often associated with the manufacturer Shenzhen SanDiYiXin Electronic Co., LTD. These devices are frequently marketed under names like "VendorCo ProductCode," "Disk 2.0," or "General Flash Disk". Device Profile: Manufacturer: Shenzhen SanDiYiXin Electronic Co., LTD.
Common Branding: Often appears in system logs as "VendorCo" or "Disk 2.0".
Controller Hardware: These drives typically utilize a FirstChip (FC1178BC) or similar controller, which is common in budget-friendly or white-label storage products.
Interface: Generally operates on the USB 2.0 or USB 3.0/3.2 protocols, though real-world performance varies significantly by specific batch. Performance Insights
Because these IDs are used for various unbranded or generic drives, performance can be hit-or-miss:
Speed Variations: For USB 2.0 models, users typically report read speeds around 19–22 MB/s and write speeds of 4–7 MB/s.
Optimization: Users on the ITTSB Forum have found that formatting these specific drives with the exFAT file system can noticeably increase file transfer bandwidth compared to standard FAT32.
Fake Capacity Warning: Generic IDs like these are sometimes used in "fake capacity" drives found on discount marketplaces. Experts on the HDD Guru Forums have documented cases where a drive reporting high capacity actually only contains 1GB of physical QLC flash memory. Troubleshooting & Drivers If your computer is failing to recognize this device:
USB Flash Drive Speed Tests - VID = 346d, PID = 5678 - NirSoft vid+346d+pid+5678+best
The hardware identifiers VID 346D and PID 5678 correspond to a generic USB flash drive, often marketed under names like "Disk 2.0" or "VendorCo ProductCode". These devices typically utilize controllers from FirstChip (such as the FC1178 or FC1179) and are frequently found in budget-friendly or promotional unbranded USB sticks.
To get the best performance and reliability out of these specific devices, follow the optimization and recovery guide below. 1. Identify Your Device Specifications
The "best" way to manage this device is to know exactly what is under the hood. Since VID 346D/PID 5678 is a generic identifier, manufacturers often use it for various memory chips.
Controller: Most commonly uses the FirstChip FC1178/FC1179 series.
Real Capacity Check: Some budget drives with these IDs are "fake capacity" drives (e.g., a 16GB chip programmed to report as 64GB). Use tools like H2testw to verify the actual storage space before trusting it with important data. 2. Best Performance Settings: exFAT vs. FAT32
While many of these drives come formatted as FAT32, user tests suggest that switching to exFAT can significantly improve transfer speeds for larger files. Read Speeds: Typically range around 19 MB/s.
Write Speeds: Often average around 6.5 MB/s.Formatting with a larger allocation unit size in exFAT may help bridge the gap if you frequently move video files or large backups. 3. Drivers and Maintenance
Windows generally includes generic USB Mass Storage Class drivers that support this VID/PID automatically. The hardware identifier VID 346D and PID 5678
Driver Fixes: If the drive isn't recognized, you can manually update it via Device Manager by selecting "USB Mass Storage Device" and using the "Update Driver" function.
Power Management: To prevent the drive from disconnecting during long transfers, uncheck "Allow the computer to turn off this device to save power" in the device's Power Management tab within Device Manager. 4. Recovery: "The Best" Repair Tools
If your VID 346D PID 5678 drive becomes "Write Protected" or shows "No Media," it often indicates a firmware glitch. The industry-standard tool for reviving these FirstChip-based drives is the FirstChip MpTools. Download the version compatible with FC1178 or FC1179.
Run a "Factory Scan" to reset the controller to its original state.
Note that this will erase all data, but it is often the only way to make a "bricked" drive usable again. Summary Table: VID 346D PID 5678 Specs Manufacturer Shenzhen SanDiYiXin Electronic Co., LTD Common Controller FirstChip (FC1178/FC1179) USB Version Typically USB 2.0 (High Speed) Recommended FS exFAT for better speed
Kingston 32Gb SE9 Data Trevel восстановление - USBDev.ru
The search terms VID: 346D and PID: 5678 refer to a specific hardware identifier combination for a USB flash drive, often associated with a manufacturer named Shenzhen SanDiYiXin Electronic Co., LTD or VendorCo. These identifiers are crucial for locating the correct drivers and firmware tools, especially when a drive becomes "write-protected" or fails to format.
Here is a blog post covering how to optimize, identify, and fix these specific devices. Mastering Your USB: A Deep Dive into VID 346D & PID 5678 Part 2: Where Such Codes Actually Come From
Ever plugged in a USB drive and found it identifies as a "VendorCo ProductCode" with the cryptic ID VID: 346D PID: 5678? If so, you’re likely dealing with a generic or high-capacity flash drive—ranging from 32GB to 128GB—that uses a FirstChip controller.
While these IDs help your computer talk to the hardware, they are also the secret key to fixing common drive failures. Here is everything you need to know about getting the "best" performance out of this hardware. 1. Identifying the Hardware
Every USB device uses a Vendor ID (VID) and Product ID (PID) to tell your operating system which drivers to load. VID 346D: Registered to Shenzhen SanDiYiXin Electronic Co..
PID 5678: Often used for "ProductCode" or generic flash disks.
You can verify these yourself on Windows by going to Device Manager > [Your Drive] > Properties > Details and selecting "Hardware Ids" from the dropdown menu. 2. Performance & Optimization: Which Format is Best?
Testing shows that these drives perform differently depending on how they are formatted. According to community benchmarks on the ITTSB forum, a 32GB VendorCo drive often runs faster with exFAT than standard FAT32.
Read Speeds: Typically hit around 70 MB/s for USB 3.2 variants like the Hama Uni-C Deluxe .
The 4K Bottleneck: Be warned—these drives can have extremely poor "4K random" write speeds (around 0.01MB/s), making them unsuitable for running apps or operating systems directly. They are best used for simple file storage. 3. Fixing "Write Protected" or Bricked Drives HDD GURU FORUMS • View topic - FirstChip FC2279 BA7
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Device Name: Silex SX-DS-4000U2 Device Server
Vendor ID (VID): 346D (Silex Technology, Inc.)
Product ID (PID): 5678 (SX-DS-4000U2)