If you are looking to benchmark or verify your device transfer speeds against a globally documented log, the NirSoft USB 3.0 Flash Drive Speed Tests platform tracks public user uploads for VID 0951 PID 1666 . These user-submitted benchmarks reveal the performance parameters of the drive:
Based on common flash drive identification reports, a device with PID 1666 often features: USB 3.20 (Super Speed). Controller: Often utilizes Phison controllers (e.g., Memory: Typically Toshiba or Hynix TLC Flash. Current Rating: Usually 300mA - 504mA. Troubleshooting VID 0951 PID 1666 Issues usb device id vid 0951 pid 1666 link