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Two HDMI ports let a monitor stay connected to two video sources, such as a computer and a game console. You choose which source appears using the monitor’s input or source menu. The extra port saves you from unplugging and reconnecting cables; it does not automatically let the monitor show both sources at once.
What two HDMI ports do
Each HDMI port is an input for a video source. Connect a device to each port, then select the input you want to view in the monitor’s on-screen menu or with its controls. LG’s instructions show an input list with HDMI1 and HDMI2, while ViewSonic’s VP2776 documentation lists HDMI 1 and HDMI 2 as selectable sources: LG’s monitor connection instructions and ViewSonic VP2776 documentation.
Examples
- Computer and console: Keep both connected and switch the monitor’s selected input when moving between work and gaming.
- Two computers: Use the input selector to choose which computer’s picture appears.
The labels and menu steps vary by monitor, so consult the manual for the exact model.
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On a monitor without a separate multi-view feature, the two HDMI sources are alternatives: the display shows the selected input. Having two ports alone does not promise picture-in-picture or split-screen. Check the monitor’s specifications and menus for a named multi-view feature. For example, the VP2776 documentation lists picture-in-picture controls separately from its HDMI source selection.
#1 Best Overall
- HDMI Switching Simplified: Dive directly into your chosen media with a single button for hassle-free transitions between your game or movie without unplugging cables. Note: Manual button switching is supported. Automatic signal detection is not supported.
- - Enjoy 4K Excellence: Turn your regular viewing sessions into cinematic experiences with our HDMI switch that supports resolutions up to 4K@60Hz. Note: to guarantee a 4K60 display, please ensure that both the input and output HDMI cables are shorter than 3.3 feet with 30AWG, and that the combined length does not exceed 6.5 feet. Note: Supports one display at a time. Simultaneous dual display output is not supported.
- Huge Compatibility: Seamlessly compatible with a wide range of devices, this HDMI switch integrates everything from laptops and game consoles to TV screens and VR headsets. Note: This switch does not support HDMI CEC.
- What You Get: Anker HDMI Switch (2 in 1 Out, 4K HDMI), safety guide, 18-month warranty, and our friendly customer service.
When KVM matters
If you want to share a keyboard and mouse between two computers as you switch between them, look for a monitor that explicitly supports KVM. KVM is a separate feature, not a consequence of having two HDMI ports. ASUS describes a setup that can combine HDMI and USB-C connections and advises checking the monitor’s specifications for KVM support: ASUS KVM setup instructions. Follow the model’s connection directions, including any required USB connections, because HDMI alone does not carry keyboard and mouse control.
What to check before connecting or buying
- Inputs and devices: Confirm the monitor has the right type and number of video inputs for your sources.
- Supported video modes: Check the monitor and source specifications for resolution, refresh rate, HDR, audio, and other features on the particular input you plan to use. Port count alone does not show whether both HDMI inputs support the same modes.
- Switching behavior: Look for the source-selection, auto-switching, or multi-view behavior you want; do not assume every monitor handles inputs the same way.
- Shared peripherals: If keyboard and mouse switching is important, verify built-in KVM support separately.
For example, Lenovo notes that video capabilities vary with the monitor, computer ports, and any adapters used: Lenovo’s guide to HDMI and USB-C video connections. Check the documentation for your exact devices rather than inferring performance from the number of ports.
Rank #2
- 【Bidirectional HDMI Switcher】This HDMI Switch offer 3 HDMI Ports, so you could connect two HDMI sources to one HDMI display, or connect one HDMI source to toggle between two displays.( NOTE: ONLY one of the display would work at a time! ) With 2 LED indicators, you can easily know which port is active from the LED light.
- 【4K High Resolution】Support 4k@60Hz and backward compatible with 2k/1080p. Enjoy 3D visual and experience immersive scenery as cinema. Note: please use standard HDMI 2.0 Cable, the total length of hdmi cable is no more than 3M if you need to get vivid 4K video.（HDMI Cable is not included.）
- 【Fast and Stable Transmission】This aluminum HDMI AB Switcher not only support high bandwidth 3.4Gbps data transmission, but also ensure stable and high-definition display of audio and video, reduce data transmission loss and improve signal transmission efficiency.
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How to select an HDMI input
- Connect each source to its own HDMI input and note which device is connected to HDMI1 and HDMI2.
- Open the monitor’s input or source menu using its on-screen controls.
- Select the HDMI input associated with the device you want to display. Menu names and controls differ by model.
If the monitor shows no picture
If the picture disappears after connecting more than one signal cable, check the monitor’s input-terminal setting and manual. LG cautions that connecting multiple signal cables can result in no display depending on the input setting. Confirm that you selected the input actually connected to the source, then verify that the source and chosen input support the video mode you are trying to use. LG’s connection instructions describe selecting the connected input; the exact behavior remains model-dependent.
Quick Recap
Best Value
- 4-in-1 HDMI️ Switch: Expand one HDMI output into four inputs, offering you the freedom to connect more devices and switch between them without hassle (This product does not support the HDMI CEC feature).
- Effortless Switching: Equipped with an intuitive remote control and one-click functionality, enjoy seamless transitions between devices, for stress-free entertainment and work.
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- What You Get: Anker HDMI Switch (4 in 1 Out, 4K HDMI), 5 ft (1.5 m) USB-A to USB-C charging cable (HDMI Cables not included), remote control, safety guide with user manual, 18-month warranty, and our friendly customer service.
Rank #4
- HDMI Switch 3 in 1 out: UGREEN HDMI switcher makes it easy to stream video from 3 HDMI sources to 1 HDMI display. (NOTE: ONLY One monitor would work at a time!) This HDMI multi port adapter frees you from plugging and unplugging HDMI cables and protecting the interface and wire, so you can easily enjoy work, or play games between 3 devices
- 4K High Resolution: Immerse yourself in an incredible viewing with 4K@60Hz resolution and backward compatibility up to 4K@30Hz, 2560 1440@120Hz, and 1920 1080@240Hz, supports HDMI 2.0/1.4, and HDCP2.2/1.4. It also supports HDR10/HDR10+, 3D, RGB 8/10/12bpc, Dolby Atmos, DTS, which delivers superb images and clear thrilling surround sound for a cinematic video feast
- Fast & Stable Transmission: This HDMI switch with remote supports high bandwidth 18Gbps data transmission, and USB powered design ensures stable video transmission and better performance, making your game run smoothly and data transmission faster. Please keep this 4K HDMI splitter always connected to a power source when using
- Remote Control & Manual Switch: With the remote control and manual switch, you can effortlessly switch between gaming devices from the comfort of your couch or bed with the remote control (The control range is within 33FT). A manual switch lets you switch among 3 devices at any time with a flick of a button
- Wide Compatibility & Packing List: This HDMI switch box is compatible with most HDMI source devices, including PS5/3/4/4 pro, Blu-ray players, Fire stick, Xbox 360, Xbox series x, Nintendo Switch/Switch 2, Apple TV, Roku, DVD players, PC, laptop, HDTV, and projectors. Package List: 1* 4K HDMI Switch, 1* Power Cable, 1* Remote Controller, 1* User Manual. Please make sure your device has an HDMI port before purchasing
Rank #3
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- 4K@60Hz Resolution: Immerse yourself in an incredible viewing experience with 4K@60Hz resolution and backward compatibility up to 4K@30Hz, 2560*1440@120Hz, and 1920*1080@240Hz. HDMI switcher supports HDMI 2.0/1.4, HDCP2.2/1.4, VRR, and Dynamic HDR Chroma 4:2:0 / 4:2:2 / 4:4:4. All HDMI ports support HDR/3D/CEC. To achieve 4K@60Hz resolution, the length of the input and output HDMI cable should be within 3m/9ft, AWG30
- Fast & Stable Transmission: This HDMI switch box supports high bandwidth 18Gbps data transmission, and input and output standard AWG30 HDMI cable length could reach up to 9 FT. USB Powered design ensures stable video transmission and better performance. No frames or images are lost, making your game run smoothly. To ensure proper operation, ensure that the switch is connected to a power source when using
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- Compatible with Most Devices: UGREEN 4K HDMI splitter is compatible with a wide range of HDMI source devices, including Nintendo Switch/Switch 2, PS5/3/4/4 pro, Blu-ray players, Fire TV stick, Xbox 360, Xbox series x, Apple TV, DVD players, Roku, PC, laptop, HDTV, and projectors. (PACKAGE: 1*HDMI Switch, 1*Remote, 1*USB Power cable, 1*User Manual)
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