4 NVRs on One MonitorAre you tired of constantly switching between multiple monitors? This 4-channel HDMI multi-viewer enables you to view multiple HDMI sources, e.g., NVRs, simultaneously on a single monitor. Since all footage is sent via a single HDMI cable to one monitor, it eliminates the need for multiple displays and extra cabling. With all sources visible at once, security professionals can monitor multiple NVRs in real time and respond to incidents quickly.  PortsEquipped with 4x HDMI input ports, 4x USB input ports, 1x HDMI output, 2x USB output ports, and 1x audio output. Seamless SwitchingInstantly switch between 4 HDMI input sources with no signal loss, flicker, or black screen.6 Display ModesSupport multiple layouts, including full screen, 1×3, PIP, quad-view, left-and-right POP and up-and-down POP.4K Resolution Support video resolutions up to 4K@30fps, fully backward compatible with 720p, 1080p, 2560×1440, etc.Flexible Control OptionsEasily switch display modes or input sources using the front panel buttons or the IR remote control.Integrated KVM ControlAllow you to control each source (PC, NVR, etc.) using a single keyboard and mouse, ideal for control rooms.    Documentation ResourceInstallation Instruction Quick Guide 6455-58 4-Channel 4K HDMI Multi-Viewer