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Quick verdict
Buy a switch to connect several players or consoles to one TV input. Buy a splitter to show the same source on multiple displays. Neither label alone guarantees the gaming, HDR or audio features your setup needs.
Research-based buying guide. Product information checked October 16, 2026. We have not tested these products hands-on; recommendations distinguish published features from our buying judgments.
HDMI switches
HDMI splitters
Before comparing prices, draw the signal path in words: how many devices send a picture, and how many screens receive it? This simple count prevents the most expensive mistake in this category—buying an adapter that moves video in the wrong direction.
Switch and splitter compared
| Job | Buy | Typical arrangement |
|---|---|---|
| Add a console and streaming box to one TV socket | HDMI switch | Multiple inputs, one output |
| Repeat one player on two TVs | HDMI splitter | One input, multiple outputs |
| Choose different sources for different TVs | Suitable HDMI matrix | Independently routed inputs and outputs |
When a switch is enough
A switch selects which connected source reaches the TV. Check the input count, remote control or physical button, and how automatic switching behaves. Automatic selection can be convenient, but a device that wakes in the background may make manual control preferable. An available TV HDMI input costs nothing to use, so first check whether rearranging connections avoids buying an accessory.
StarTech’s cited two-input switch supports specified 4K at 60Hz, HDR and HDCP 2.2. That does not make it a 4K at 120Hz gaming switch. If you use high-refresh gaming, variable refresh rate or a particular HDR format, look for explicit support at your resolution throughout the TV, switch and cable chain.
When you need a splitter
A splitter distributes the same source signal. It does not turn a single computer HDMI output into two independent extended desktops. For different applications on two screens, investigate your computer’s supported display outputs or a compatible docking solution instead.
Mixed screens complicate duplication. A splitter may have to negotiate a format both displays accept, while some models include scaling or EDID controls to handle differences. StarTech’s cited four-output model describes its own scaling behavior; do not assume a cheaper two-output product includes the same feature. Check the manual for a 4K television paired with a 1080p monitor, especially if you also want HDR or surround audio.
Small details that affect daily use
Count the extra HDMI cables and the accessory’s power supply in the full cost. Verify the cable lengths against the manufacturer’s supported configuration. A splitter may require power near the equipment even though HDMI itself carries a small electrical supply. Avoid hiding the adapter where its button, remote receiver or connections become inaccessible.
ARC and eARC are separate concerns from ordinary forward video switching. If your soundbar needs a return-audio path from the TV, buy equipment explicitly supporting that arrangement. An unused output or a reversible-looking socket is not evidence of return-audio compatibility.
The value decision
Choose the least expensive model that explicitly supports your complete signal format and routing. Extra outputs do not improve picture quality. Pay for more bandwidth or controls only when your actual sources and displays can use them, and keep the packaging until every connected device has been checked.
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HDMI switches
HDMI splitters