The Pinnacle Systems Callisto REV 70 16 driver is a legacy device driver supporting the Callisto REV-series capture/playback hardware (REV 70/16). It provides kernel-level interface and user-space utilities to enable video I/O, synchronization, and configuration between the host system and the REV 70/16 video I/O card.

: Official driver support generally ended with 32-bit versions of Windows XP or Vista. It often fails to be detected or install correctly on 64-bit systems.

Intel Pentium or AMD Athlon 800 MHz (1.5 GHz recommended).

Cogging (torque ripple) kills precision at low speeds. Rev 70 records a 360-degree magnetic profile of your specific motor and injects a counter-waveform. Users report a at 0.5 RPM compared to Rev 60.