Older controller designs like the PS2307 are less power-efficient than modern alternatives, leading to higher thermal output under load.
Open the parameter editing configuration tool inside your MPALL folder.
The Phison PS2251-07 (often marked as PS2307) is a popular controller chip used in many flash drives (like Kingston DataTraveler, Patriot, and OEM drives). phison ps225107ps2307 hot
When you transfer large files (e.g., 10GB of video), the controller works at maximum frequency. Simultaneously, the NAND flash memory itself generates heat during programming/erasing cycles. The PS2251-07 lacks an internal temperature sensor throttling feature found in SSDs, so it runs full-tilt until the transfer is complete.
To help point you to the right software version or files, could you share a bit more info? Let me know: Older controller designs like the PS2307 are less
The host computer's USB port can also contribute to heat problems. A malfunctioning USB port—whether due to damaged electrical connectors, accumulated dust, or underlying motherboard issues—can cause irregular power delivery that forces the flash drive to work harder and generate more heat. One user warned: "USB port voltage that is too high, causing the main control chip on the USB drive's circuit board to burn out. So the USB drive becomes very hot".
Run fsutil usn queryjournal X: (replace X with your drive letter). If the USN journal is enabled, Windows is logging every file change. Disable indexing and disable "Last Access Time" updates via fsutil behavior set disablelastaccess 1 . When you transfer large files (e
The drive becomes unresponsive or freezes file transfers.
If software solutions prove insufficient, hardware troubleshooting may be necessary: