Sagem MorphoSmart CBM, CBM-E, CBM-V2, and CBM-V3.
Users faced a recurring nightmare: You plug in an older fingerprint reader (e.g., a Sagem CBM inside a Dell Latitude security bundle). Windows says “Unknown USB device.” You search for “Sagem Compact Biometric Module Driver 2021.” You find forums full of people linking to dead French download pages.
In 2021, many industrial devices ran on Intel Atom or ARM processors. The driver included aggressive sleep/wake cycles, allowing the CBM to stay in deep sleep until a finger touched it—then wake, capture, and verify in under 200 milliseconds.