Specifications Summary: Refresh Rate: 100Hz, Lenovo ThinkVision S22-4e Monitor - Powers peak professional productivity!Good visual fidelity for great productivity:Clear content - Experience clear content with 99% sRGB color space coverage and 1300:1 contrast ratio; Smooth visuals - Enjoy a smooth working experience with the 100Hz high refresh rate, which can be manually adjusted to 48Hz to further match your workflow;Eye-strain-reducing technology - Get work done without suffering from any eye fatigue, leveraging the monitor's low blue light hardware and flicker-free technology, which guarantees reduced blue light emissions without color distortion; Ergonomics and connectivity at its core:Accessible connectivity - Connecting to your work computer is easy using the monitor's HDMI and VGA ports; Designed for ergonomics - Elevate your working experience with a comfortable posture and clean desk with the monitor's easy-to-assemble tilt stand (-5°/+22°) and Tiny PC-supported VESA mount; Prioritizes sustainability: Designed to work for you and the environment, the monitor comes in recyclable cushion packaging and has EPEAT Gold and ENERGY STAR 8.0 certifications, making it environmentally friendly