The tool measures exact read and write speeds, allowing you to verify if a drive genuinely meets its advertised USB 3.0, Class 10, or UHS speed ratings.

Despite its compact file size, this utility offers a robust suite of diagnostic capabilities:

It runs instantly from a desktop or temporary folder without cluttering the Windows Registry.

The software writes specific data patterns across the entire claimed volume of the drive and reads them back. If the data returns corrupted or missing, it exposes the exact point where the real storage ends and the fake firmware calculation begins.