Extend a single HDMI source to four remote displays without running separate HDMI cables to each screen. The SIIG CE-H23U11-S1 routes video over Cat6 for installations that need cleaner cable paths, longer reach, and more flexible source placement. With support for up to 40 m, it fits meeting rooms, classrooms, retail displays, and control spaces where the source must stay out of sight while the displays remain in view. This extender is designed for practical AV deployments where consistency matters. By using Cat6 as the transport medium, it helps simplify structured cabling and reduce the clutter that comes with long HDMI home runs. The four-output design makes it a strong fit for synchronized presentation environments and multi-screen messaging. IR extension support adds control convenience when the source device is located away from the display area. For integrators, that means fewer compromises during installation and a cleaner end-user experience. When the job calls for dependable distribution to multiple displays over distance, this model delivers the right balance of reach, control, and deployment simplicity.