One used monitors for sale. Used for customer service support and were used for 3 months. Adjustable tilt and raise brackets are included.BL2790 | 27" 1080p BenQ Business Monitor Enterprise-Class Designs to Enhance Productivity at WorkGlobal safety authority.Effortless Display Transitions. Stay Linked to Your DevicesStay effortlessly connected to your working devices, with multiple ports for the ultimate convenience. Switch between all your input sources with seamless efficiency.Seamless Viewing: 100Hz Smooth Motion100Hz refresh rate reacts more quickly to changes, resulting in a clearer and smoother user experience with eye comfort for webpage reading, video streaming, etc.TÜV Rheinland, certified the BL2790's Flicker-Free and Low Blue Light Technology as truly friendly and safe for your eyes. Eyesafe 2.0 certification ensures that the display reduces blue light while maintaining vivid colors.