Vision Research has introduced a new 4K ultra-high-speed camera titled S991. This model is capable of shooting 937 FPS in 4K with the help of CXP-Over-Fiber technology that allows high image quality combined with low noise. Vision Research states that the S991 is built on the power of the mighty Phantom Flex 4K which is being widely used by filmmakers.
Source: https://ymcinema.com/2022/01/18/meet-the-phantom-s991-4k-high-speed-937-fps-camera/