


The Startech ST121HDBT20L HDMI switch is a professional solution designed for reliable transmission of high-definition video and audio signals over long distances using cable transmission technology. This device functions as a transmitter and switch, allowing HDMI signals to be sent via CAT5e or CAT6 cabling to a remote location, making it especially useful for digital signage, conference rooms, or other installations where the distance between source and destination is significant. It supports 4K resolutions at 60 Hz up to 70 meters, ensuring Ultra HD image quality without perceptible loss thanks to visually lossless compression and 4:4:4 chroma subsampling, guaranteeing color fidelity and smooth transitionsâessential for graphic environments and demanding presentations. When used with 1080p at 60 Hz signals, transmission can reach up to 100 meters without degradation. The aluminum design and black color provide a discreet and durable appearance, easily fitting into professional environments. The device features HDMI and RJ45 connections, ensuring compatibility with most modern AV equipment and integration with standard network infrastructures. Its PoC (Power over Cable) system allows simultaneous power delivery through the same network cable, requiring only one power adapter, simplifying setup and avoiding complex installations. The product includes an installation guide and mounting accessories for quick, tidy, and professional placement on walls or racks. Key technical parameters include support for up to 18 Gbps bandwidth and compatibility with HDMI 2.0, essential for an immersive audiovisual experience. The Startech ST121HDBT20L is a robust, flexible, and efficient option for those needing to extend HDMI signals while maintaining maximum quality over long distances, perfectly suited for corporate, educational, and commercial environments.
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