"Being built with the same high-end sensor as we have seen with the IRONCLAW RGB, with a resolution up to 18000 DPI, adjustable in 1 DPI increments, the M65 RGB Elite tracks wonderfully, especially after it has passed the calibration stage. While it feels about the same in hand as the previous M65 iteration, the fact that the Sniper and the thumb side buttons are brought closer together was a good design choice, since you can access these faster. CORSAIR has also made sure to optimize in order to make the chassis lighter, while the customizable weighting system has been retained."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips