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What is a KVM Extender? USB/HDMI/VGA/DVI/DisplayPort over CATx/Fibre/IPWhat is a KVM Extender?KVM Extender definitionKVM extenders are devices designed to increase the distance between a keyboard, monitor and mouse (KVM station) and a computer. Since PS/2 and USB keyboard and mouse protocols are only designed to run a distance of about 5-10m, and digital video signal quality is typically starting to deteriorate beyond about the same cable length (depending on the type of cable and interface), KVM extenders are a convenient solution to transmit these signals over long distances up to 150m (CATx) or even farther via fibre or IP connections. The main purpose of KVM extenders is to provide point-to-point computer extension and scale the access to computers from remote locations (e.g. secure data centres), ultimately helping to increase productivity workflow and workspace ergonomics. If you are looking for info on KVM Switches, visit What is a KVM Switch? What is a KVM Extender used for and when do you need one?KVM extenders play an important role in overcoming bandwidth limitations of traditional VGA, HDMI and DVI cables, and distance limitations of the PS/2 and USB protocols. KVM extenders are used for a range of applications such as:
Find out more about why extending KVM is relevant and why it is used throughout a wide range of applications in almost all sectors. If you are not completely sure whether KVM extension is what you need and KVM switching might be more appropriate for your application, visit this article on KVM Switching vs. KVM Extension to find out more. What Type of KVM Extender do you need?While all KVM extenders are used to connect users to their computers, there are a wide variety of customer needs and important features to look for when purchasing a KVM extender. In order to find the best KVM extender for your configuration here are the major questions to consider in advance:
Types of KVM ExtendersThere are different types of KVM extenders that are capable of transmitting various signals: VGA, DVI, HDMI, DisplayPort video signals, as well as keyboard and mouse, transparent USB, digital or analogue audio and serial formats like RS232.
HDMI KVM ExtendersHDMI KVM extenders provide HDMI and USB signal extension over long distances without compromising video quality. These extenders offer low latency or even real-time transmission without delays and compression artefacts that degrades the high-resolution viewing experience. They are ideal for applications such as broadcast, high-end medical imaging, interactive digital signage, home theatres, and even industrial automation. Find out more about Black Box HDMI KVM Extenders VGA KVM ExtendersVGA KVM extenders are capable of extending up to 1920x1200 VGA signals over distances of 150 m (CATx) or even farther over fibre connections. Some extenders come with a built-in de-skew option to compensate for skewing effects. Find out more about Black Box VGA KVM Extenders DVI KVM ExtendersDVI KVM extenders are designed to overcome the distance limitation of DVI cabling. Digital KVM extenders are ideal in critical applications where reliable digital image quality and fast switch-over of redundant hardware are required, for example in broadcast playout centres or industrial control rooms. Find out more about Black Box DVI KVM Extenders DisplayPort KVM ExtendersDisplayPort KVM extension technology supports uncompressed transmission of up to 4K60 video signals. This helps to access high-performance graphical workstations and critical video processors from secure and temperature controlled equipment rooms while maintaining the same user desktop experience for editors, 3D artists and control room operators. Find out more about Black Box DisplayPort KVM Extenders What is the best KVM Extender to buy?If you are wondering which KVM extender you need, and what is the best KVM extender to buy for your configuration, visit our KVM Extender Buyer's Guide page. Find recommendations, suggestions and all the important features you should look for when purchasing a KVM extender. What to know more?
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