The 4K camera system host achieves a resolution of at least 3840×2160 pixels (with an aspect ratio of 16:9). It delivers outstanding photosensitive performance and a high signal-to-noise ratio by utilizing a 4K ultra-high-definition 3CMOS image sensor. The system features an optical lens connection to cater to the varying needs of different surgical procedures. It includes an electronic magnification function, allowing for real-time image size adjustment via buttons on the camera. The camera buttons' functionality can be customized to meet surgeons' specific requirements, facilitating ease of use during operations and making it suitable for a range of surgical applications.