# We now have independent testing confirming Razer’s latest innovative mouse sensor tech does what it says it does

- URL: https://talkfuse.com/story/we-now-have-independent-testing-confirming-razers-latest-innovative-mouse-sensor-tech-does-what-it-says-it-does/
- Published: 2026-07-24T12:33:28+00:00
- Updated: 2026-07-28T22:06:48+00:00
- Original publisher: PC Gamer
- Original article: https://www.pcgamer.com/hardware/gaming-mice/we-now-have-independent-testing-confirming-razers-latest-innovative-mouse-sensor-tech-does-what-it-says-it-does/
- Topics: Gaming

## Key points

- Testing supports Razer’s FrameSync claims.
- Sensor scans align with USB polling.
- Minor timing and DPI concerns remain.

## Summary

Independent oscilloscope testing indicates that Razer’s FrameSync technology works broadly as advertised in the Razer Viper V4 Pro gaming mouse. The feature synchronises the mouse sensor’s scans with the PC’s polling requests, aiming to reduce unnecessary activity and improve battery life without compromising responsiveness.

Tester and peripherals YouTuber piaknow compared the USB signal with the sensor’s light source and found their timing stayed fixed, supporting Razer’s claim of synchronisation. The Viper V4 Pro is rated for 180 hours at a 1 kHz polling rate; however, small 0.25 ms timing variations were observed periodically, and a separate DPI downshift issue remains unresolved.

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Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.