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HDMI® KVM IP Fiber Optic Extender Switch 403FHK: Building a professional-grade solution for long-distance centralized control
The 403FHK HDMI® KVM over IP fiber extender and seamless switcher delivers up to 20km long-distance transmission of HDMI®, USB, audio, and control signals via single-mode fiber. Designed for command centers, data centers, financial trading floors, and industrial control systems, it enables centralized deployment, seamless switching, low latency, and scalable TCP/IP architecture for professional B2B applications.
2025-12-31 ekl
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How to separate the audio interface from HDMI®? Comprehensive analysis and solutions
How do you separate the audio interface from HDMI®? This article explains in detail the principles and methods of HDMI® audio separation, and introduces practical solutions such as HDMI® audio splitters, ARC/eARC, and amplifier decoding, helping you easily connect amplifiers and speakers for a better sound experience.
2025-08-25 ekl
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What is Audio Return Channel (ARC)? HDMI® ARC vs eARC: Differences and Application Guide
This article provides a detailed explanation of the Audio Return Channel (ARC) concept and offers an in-depth analysis of the differences between HDMI® ARC and eARC, helping users understand how to achieve high-quality audio transmission through HDMI® and ensure better compatibility between TVs, amplifiers, and audio systems.
2025-08-16 ekl
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HDMI® Matrix Switch 412HN - 4x2 Smart Solution for HD Video Distribution
eKL 412HN HDMI® 4x2 Matrix Switch lets you connect 4 HDMI® sources to 2 displays with easy switching. It supports up to 4K@60Hz resolution, audio and video separation, and both optical and 3.5mm audio output. Widely used in conference rooms, surveillance centers, showrooms, and more.
2025-07-08 ekl
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![8-in 2-out HDMI seamless switcher 812HA connection use graphic tutorial]()
8-in 2-out HDMI® seamless switcher 812HA connection use graphic tutorial
812HA is an 8-in 2-out HDMI® seamless switcher, which can be installed on the rack; it supports 8-way HDMI® input and 2-way HDMI® (same screen) simultaneous output and screen split display function
2023-07-27 ekl
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![What is an extender? What are the functions and advantages? What are the types and uses?]()
What is an extender? What are the functions and advantages? What are the types and uses?
The function of the extender is to solve the problems of signal attenuation, interference and distortion that may occur during long-distance transmission, and to ensure the quality and stability of the signal.
2023-07-21 ekl
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![What are the types of common optical fiber audio cables? What's the difference]()
What are the types of common optical fiber audio cables? What's the difference
Optical fiber audio cable is a technology that uses optical fiber to transmit digital audio signals. It is a high-speed, high-quality, and high-security audio transmission method that can transmit multi-channel surround sound signals.
2023-06-27 ekl
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![Differences, comparisons and applications of common audio interfaces]()
Differences, comparisons and applications of common audio interfaces
An audio interface is a device that connects audio equipment and acts as a bridge between analog and digital signals. Audio interfaces are typically used with front microphones, line-in, and a range of other input devices. According to the type of transmission signal, it can be divided into analog audio interface and digital audio interface.
2023-06-22 ekl
