HDMI Selector or HDMI Duplicator: Unraveling the Essential Distinctions

Key Takeaways

HDMI switches are used when you have multiple image sources but only one screen, allowing you to choose which source to display at any given time.

HDMI splitters enable one source to simultaneously display the identical image on multiple screens. However, they do not have the capability to show distinct pictures on each screen.

KVM switches can serve as HDMI switches, but HDMI-only models are typically more cost-effective and better suited for basic switching between HDMI sources.

Using HDMI ports can sometimes be a bit confusing. If you have a varying number of image sources and outputs, you may find yourself in need of HDMI switches and splitters to address your requirements. However, it's important to note that these two devices serve different purposes. In the section below, we will elucidate the functionalities of an HDMI switch and an HDMI splitter.

What’s an HDMI Switch?

An HDMI switch is an innovative device designed to enhance your entertainment experience by effortlessly connecting multiple image sources, such as gaming consoles and computers, to a single HDMI port on your TV or monitor. With the multitude of modern TVs and affordable monitors equipped with multiple HDMI inputs, it becomes essential to find a convenient solution for displaying all your devices effectively. This is where an HDMI switch proves to be an invaluable tool, offering you the flexibility to connect a greater number of HDMI ports than what is initially available.

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While certain HDMI switches come equipped with their own male connectors, it is typically necessary to supply a high-quality HDMI cable for the image sources. As the name suggests, these switches feature a physical switch, enabling you to select the desired source to be used at any given moment.

What’s an HDMI Splitter?

HDMI splitters serve as compact devices that enable simultaneous display of a single image source on two or more screens. In contrast to a switch, they facilitate the utilization of multiple screens using just a solitary output.

Most HDMI splitters typically have two ports, but there are models available that can support three or more displays.

As the image is divided, the signal strength diminishes. Thus, if you intend to use a splitter with multiple screens, it may be necessary to opt for a model that has its own power source.

Can I Use an HDMI Splitter to Extend My Desktop?

HDMI splitters have the limitation of transmitting identical images to all connected screens. They lack the capability to display distinct images on each connected display. These splitters serve as convenient and cost-effective options when you simply require image duplication across multiple TVs or monitors.

To extend the desktop of a laptop with only one HDMI port to three screens, HDMI splitters are not suitable. Instead, you will require alternative solutions. Some laptops come equipped with Thunderbolt ports that support DisplayPort Alt Mode, and some even have dedicated DisplayPort outputs in addition to HDMI. If your computer has these features, all you need are the appropriate cables and ensure that the TV or monitor has compatible ports.

However, if your laptop does not have any other video port options, USB to HDMI adapters are a viable alternative. Additionally, for applications where low latency is not a concern, you can consider using one of the top wireless display apps available.

Are HDMI Switches and KVM Switches the Same?

KVM switches are advanced devices compared to HDMI switches as they enable you to exhibit images from various sources on a solitary screen, while using only one keyboard and mouse for two or more computers. This nomenclature is a direct reference to the combined usage of Keyboard, Video, and Mouse.

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In the past, VGA or DVI were commonly used as video ports in older models. However, the current and superior KVM switches feature HDMI connections. Likewise, keyboards and mice traditionally utilized PS/2 connectors, whereas USB is now the preferred norm.

Hence, it is possible to utilize a KVM switch as an HDMI switch, functioning perfectly even without a keyboard or mouse connection.

However, it might not be the optimal choice considering that KVM switches are higher in terms of technological advancement, resulting in a higher price point. In contrast, when in search of an HDMI switch, they typically come at a lower cost compared to KVM switches.

However, if you happen to have a KVM switch already at hand, it will do the job as well as an HDMI one, so you can use it without issues.

Switching and Splitting Is Not Dividing and Conquering

When you have more devices than available ports, HDMI switches and HDMI splitters are useful options. However, it is important to determine whether it is the sources or the outputs that are in limited supply before purchasing an adapter, to avoid investing in an unhelpful solution.