The ATEN CS19216 16-Port USB 3.0 4K DisplayPort KVM Switch can effectively access and control up to 16 DisplayPort computers from a single USB keyboard, USB mouse, and monitor console. With its dual interface console, users can choose between DisplayPort/HDMI video output supporting high video quality up to 4K DCI (4096 x 2160 @ 60Hz), presenting crystal-clear visuals. To meet the needs of easy expansion and flexibility, the CS19216 can be cascaded to two levels to control up to 256 computers from a single console. Furthermore, the CS19216 supports multi-display function by stacking up to eight CS19216 units to compare and analyze information on 8 monitors at most, which substantially streamlines the working environment. With two patented ATEN technology - Video DynaSync™ and EDID Expert™, the CS19216 can optimize display resolution, accelerate switching between ports and power up smoothly while eliminating boot-up display problems. Besides, the CS19216 comes with a built-in USB 3.1 Gen 1 hub delivering data transfer rates up to 5 Gbps, allowing users to speed up operations and share USB peripherals instantly. For user-friendly port selection methods, the C19216 offers pushbuttons, hotkeys, RS-232 commands, and OSD with newly-designed UI, bringing effortless and intuitive operations. To eliminate security concern, a two-level password authorization is available to enhance security protection for accessing and controlling computers. Consolidating these advantageous functionalities, the CS19216 is ideal for server room/computer room management applied in industries with requirements for high-quality images and multitasking, such as Enterprise, Government, Production, Telecom, Finance, Medical Healthcare, Industrial Automation, etc.