What is HDMI Splitter? How Does HDMI Splitter Work?

The HDMI splitter allows us to transmit the audio and visual from one HDMI source-In Case If the Size of cables is like mini and micro HDMI. This can be helpful If we want to connect our Television to an external sound system, but your device doesn’t support HDMI ARC or eARC. It Can Be helpful when we want to display any content or video from a single source to multiple TVs.

HDMI splitters take a signal in from one device and then send the exact same signal out to multiple displays. Since HDMI is capable of digital handshaking, the splitter can read and match the signal that each display device is expecting.

An HDMI splitter takes a signal from a single source and divides it into two similar sources. HDMI Splitters can be simply used for dividing the signal and adding some additional power to the divided signals to pay back for the loss of dividing a signal in half. Passive HDMI splitters are mostly enough for applications. However, if you own a long cable set, you should use an HDMI splitter.

You must have some questions about HDMI splitters. Sometimes, similar technology, the HDMI switch, is confused for the HDMI splitter. The HDMI Splitter Divides a single Source into multiple outputs.

On the other hand, the HDMI switch is used for transmitting multiple sources to a single output. [most of the receivers react like HDMI switches]. Thus an HDMI splitter will transmit to multiple sources while an HDMI switch is Can Only Transmit To one.

How Does an HDMI Splitter Work?

An HDMI splitter is an easy-to-use device. Almost every HDMI Splitter will have a single input of HDMI signal and output for multiple HDMI outputs.

When you want to connect more than one device to a TV, you need cables. Passive and active HDMI splitters work differently, but the formula is the same.

The HDMI cable has 19 pairs of wires that are the same number of pins in the HDMI plug. Every wire transmits different data electronically through digital signals. This involves the audio and visual data and the information about that particular device and the order found on the remote control.

An HDMI splitter is a device that splits each of the pairs of wires in a way that you have two or more sets of these 19 pairs of wires.

Passive HDMI splitters are the long and short of it. Active HDMI Splitter, There is another step. One of the disadvantages of dividing an HDMI Signal is that you scientifically cut the power of every output signal. For this cause, you will not find a passive HDMI splitter with more than two outputs.

To pay back the loss of power, active HDMI splitters add power to the HDMI signal, By An external power source to power up the signal. This original signal is passed through Transistor. Its main work is to restrict the wall of the power source as the signal moves through it. You can also Say That it works as a megaphone but for electricity.

When Would You Use An HDMI Splitter?

There is a lot of scenarios in which an HDMI Splitter becomes handy. The most common scenario/uses for an HDMI splitter is When You Have Different audio and video devices or when you want to show your display to multiple devices. The Selected Application Decides Whether You Need an active or passive HDMI splitter.

Passive HDMI Splitter

For most basic users, HDMI will be contained to a TV, Console, or similar stuff. A passive HDMI Splitter (on Amazon) should be enough. As long as the signal is changed by interference, it must come through with no noticeable differences.

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An HDMI Splitter Will be a perfect device for you, in case of a single source output to an audio and visual output. A way more preferable way is to connect the device through the HDMI ARC or eARC.This will require an HDMI ARC or e ARC on both your audio and display device. This will be marked as such next to the port.

You will have to connect the external source to the display device or audio device in a different channel to set up. It’s a good idea to use the device to the HDMI ports as a central device; after that, connect the display and audio device in the HDMI ARC or eARC ports.

 Check the device manuals to enable on each device if you own HDMI ARC instead of HDMI eARC, and Setup will be auto-completed if you have HDMI eARC on All of the devices.

You will Have the advantage of using HDMI ARC or eARC on an HDMI splitter. It allows you to get CEC or Consumer Electronic Control. This means you will have control across all of your devices through your device’s remote. It also syncs your devices to have the master volume to all.

Active HDMI Splitters

If you are doing wire runs or outputting to two or more destinations, then you will definitely need an active HDMI splitter (on Amazon).

We know that if we divide any electronic signal, the resulting signal will be weaker than the original signal. Dividing the signal twice will make them too weak. So, A weakened signal may be harmful to interference over lengthy cable runs.

The active HDMI splitter will allow you to divide the source of the HDMI signal without any noticeable loss in SI or signal integrity. This will allow for an HDMI signal to be divided various times, with some splitters having as many as eight outputs. It also helps you to pick up less radio frequency interference.

Does an HDMI Spitter Degrade The Audio or Picture Quality?

As previously mentioned, a passive splitter will scientifically mean a cut in signal strength. But, for the majority of the users where You are likely using short wires/cables, this should not matter that much. The main reasons lie in how digital audio and video signals work compared to the analog counterparts of theirs.

An analog signal takes a media source and converts it into an electric signal which directly acts for that source.

With audio, for example, the signal’s voltage straightly translates to how far away the speaker cone is pushed from its relaxing point, and the changes in the voltage create the movement of the speaker cone. Its means the more voltage equals to louder sound.

The video is a little bit complex, But the basic principle is the same. You will have an idea of what will be displayed by looking at the voltage pattern.

This is not the case with the digital signals; overall, if you break or weaken the power of an analog signal, there will be a weakening output result. The sound may get quieter than usual, and the color of the picture may get some issues.

How HDMI Reduces Signal Loss

This is not the case in the digital signal. Unlike the analog signal, which communicates through the frequency of electric pulses and their voltage. High and low are the only states in the digital signal.

Unlike the analog signal, The data is converted before being sent through the cable and decoded at another end. The figure of this signal depends not only on the data being sent but also on the encrypted protocol between the two devices.

So this means you are not able to tell immediately what is happening to the audio or visual information by looking at the electric pulse pattern.

Cause the digital signal only depends on the frequency, not the voltage; reduced power does not mean distracting audio or color-shifted picture. That’s why you should not worry about using a passive HDMI splitter for shorter cable runs.

Use HDMI Splitter On Fire TV Stick

In Longer runs, this may result in radio interference. The decrease the sound further makes radio frequency sound take over the signal; you will see red and green dots, choppy or crackly audio if you have this problem.

Using longer cable runs for an active HDMI splitter may solve this problem. However, If the problem continues, you may have to upgrade your HDMI cable, which one is better shielded; a shielded cable has an extra layer of a substance that deflects radio waves.

When using a piece of older equipment, you may find fewer HDMI ports than you need, but now that you have an HDMI splitter, you should not worry anymore.

-our editorial board has reviewed this article and has been approved for publication according to our editorial policy.

Best Seller List of HDMI Splitters:

SaleBestseller No. 1
avedio links HDMI Splitter 1 in 2 Out [w/ 4 Ft Hdmi Cable]Not for Extended Display-Mirror Same...
  • 1x2 HDMI Splitter Duplicate/Mirror Only(Not Support Extend): avedio links HDMI Splitter can only duplicate same content from one HDMI input signal to two HDMI displays, transmit video and audio simultaneously, two displays can work at the same time. Note: This splitter not support dual-screen extension. Due to HDMI standards, it only mirrors one signal to two displays simultaneously.
  • Not Support: 1.Not Extended,it not extend different content to two monitors; 2.Not a switcher, it not support connect two HDMI input signal to one monitor; 3.Not a audio extractor, not support connect to any audio device such as speaker,sound-bar...
  • 4K Ultra HD Resolution: Powered HDMI Splitter support 4K@30Hz, Backward compatible with 1080p@50/60Hz/1080i@50/60Hz/720p@50/60Hz/720i@50/60Hz/576p@50Hz/576i@50Hz/480p@60Hz/ [email protected] use HDMI 2.0 AWG 26 cable, for 4K,length≤16ft; for 1080P,length≤32.8ft
  • Plug and Play: No external drivers required. Please connect a 5V 1A power adapter to ensure stable performance, avoid no signal output or screen flickering issue. Support HDMI v1.3/1.4,HDCP1.4 (Not Compatible With HDCP2.2). Support deep color 12 bit/16 bit. Support audio format: DTS-HD/Dobly-true HD/LPCM7.1/DTS/Dobly-AC3/DSD/HD(HBR)
  • Package List: 1* 1 in 2 out HDMI splitter(size:2.48*2.05*0.51inch), 1*4FT high speed HDMI cable, 1 * 2.6 ft USB power cable( power adapter not included, plug the usb cable with power adapter into wall outlet is necessary); use HDMI 2.0 AWG 26 cable, length ≤16ft for 4k; length ≤32.8ft for1080P
SaleBestseller No. 2
HDMI Switch 4k@60hz Splitter, GANA Aluminum Bidirectional HDMI Switcher 2 in 1 Out, Manual HDMI Hub...
  • 【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.
  • 【Broad Compatibility】 HDMI Splitter Switcher compatible for most standard HDMI port devices. Support Input: computer, XBox 360, XBox One, PS3 / PS4 ,Blu-Ray DVD player etc. Output: HD-Ready or Full HD TVs, monitors, projectors etc.
  • 【No External Power Needed】 This 4k HDMI Switch Box is easy to use, no external power is required, just simply press the button on the HDMI switch box to make shift of input or output source. It comes with lifetime technical support & friendly customer service and would solve your problem within 12 hours. So just feel free to contact us by message-centre if you encounter any problem while during the use.
Bestseller No. 3
HDMI Splitter 1 in 4 Out, WARRKY 4K Power HDMI Splitter 1x4, [Ultra-Thin Design, USB-C Powered, Easy...
  • [HDMI Splitter 1 in 4 out] Duplicate 4K HDMI signals from a single source to four HDMI displays, with synchronized video and audio. Ideal for enjoying TV shows in different rooms using only one TV box or more multi-screen setups! Please note that this HDMI Splitter does not support extend mode, only supports mirror mode. (Mirror/Duplicate mode only.)
  • [USB-C Powered for Stable Performance] This HDMI amplifier switcher supports up to 50ft HDMI cable, significantly outperforming the average standard. The included USB-C power cable can be connected to any USB-A device to provide stable performance for Apple products, game console, or TV boxes. No need for a separate charger. Compact size and light weighted. NOTE: Please power the HDMI Switcher before connecting other HDMI devices.
  • [Mirror the Same 4K Contents to 4 Screens] This HDMI duplicator support up to UHD 4K@30Hz, QHD 2K@60Hz and FHD 1080P@120Hz. Backward compatible with 480i@60Hz/480p@60Hz/576i@50Hz/576p@50Hz/720p@60Hz/1080i@60Hz/1080p@60Hz. Compliant with HDCP 1.4. Support audio format: DTS-HD/Dobly-true HD/LPCM7.1/DTS/Dobly-AC3/DSD/HD(HBR). ONLY support 4K@60Hz in YCbCr. NOT support CEC, HDR, and VRR.
  • [Ultra-Thin Designed] Only 0.55 inches thick, easy to set up in every corner. Space Grey-colored exterior lends the product an elegant appearance. Five status indicator lights keep you informed of the product's operation. Non - slip rubber feet guarantee stability during use. Gold-plated HDMI connectors maximize conductivity.
  • [What's in the Package?] Inside the package, you'll find a 4K HDMI Splitter 1x4, a USB-C to USB-A power cable, and a user guide. All WARRKY products are backed by an online support team. If you have any questions regarding this quad hdmi adapter, please consult for fast and responsible support within 18hrs!
SaleBestseller No. 4
Anker HDMI Switch, 4K@60Hz HDMI Switcher, 2 in 1 Out with Smooth Finish, Supports HDR, 3D, Dolby,...
  • 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.
  • - 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.
  • 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.
Bestseller No. 5
HDMI Splitter 1 in 2 Out 4K with Audio Synchronization, HDMI Hub HDMI Splitter for Dual Monitors...
  • HDMI splitter 1 in 2 out for dual monitors. The separator can split a single signal source from a TV box, game console, and PC into two and transmit them to two display devices (such as a TV, monitor, and projector)
  • HDMI splitter 1 in 2 out extended display and mirrored display (The two signal sources output by the splitter must display the same, but they can be different from other displays)
  • Supports up to 4K resolution and 30Hz refresh rate, compatible with 2K 60Hz, 1080P 60Hz, 720P 60Hz. The actual displayed resolution is related to your device parameters and display settings, and for the first connection, you may need to actively adjust the relevant setting options.
  • HDMI splitter 1 in 2 out with audio, audio signal will be synchronized with HDMI signal output, no additional audio cable required!
  • Easy to use, no need to install drivers! Simply set up to watch videos on two display devices!
SaleBestseller No. 6
MT-ViKI HDMI Splitter 1 in 4 Out, 1x4 Power HDMI Splitter 4 Ports w/AC Adapter, 4Kx2K@30Hz 3D Full...
  • 4K HDMI splitter 1 in 4 out: this hdmi splitter can mirror/duplicate 1 HDMI input source to 4 HD output monitor simultaneously; Warm Reminder: 1. This is a HDMI splitter, not a HDMI switch, you can't switch between devices. 2. Doesn't extend screen, only can mirror screen to multiple monitor.
  • Resolution: 4 way hdmi splitter supports resolution 4Kx2K@30Hz, Full HD 1080P, 3D, deep color 8/10/12 bit; Supported DTS-HD, Dolby-trueHD, DTS, Dolby-AC3, DSD etc; Plug and play, no software required. Please note that the input/output device must support 4K in order to display 4K resolution.
  • High Compability: This powered HDMI splitter support output 4K 30 HDCP V1.4, input support: computer, PS3, PS4, Xbox, Blu-ray DVD player, STB any standard HDMI version work with HD TV & monitor with HDMI port.
  • Cascade Connection: 1x4 HDMI splitter supports cascade for multiple splitters, it can transfer HDMI output signal up to 100ft (Input 40 ft and output 60ft )
  • Package: HDMI Splitter 1 in 4 out *1, AC Power adapter*1; MT-VIKI also provide HDMI splitter 1 in 2 out, 1 in 4 out, 1 in 8 out, and 1 in 16 out. If no display after connected, pls help to check if connected reversely.
Bestseller No. 7
HDMI Splitter 1 in 2 Out,Support 4K@30Hz, HDCP 1.4, Lossless Audio and Video Splitter - with Micro...
  • [4K Ultra HD Picture Quality] 4k hdmi splitter Supporting resolutions up to 4K x 2K @ 30Hz, compatible with HDMI 1.4, providing uncompressed HD video and audio transmission, perfectly adapted to TV, projector or monitor. ( NOTE: Please make sure the resolution of both output devices is the same to ensure normal operation. Not support extend, mirror only.)
  • [1 Input 2 Output Lossless Distribution] Hdmi splitter 1 in 2 out ,Synchronously distribute 1 HDMI input signal to 2 output devices to keep audio and video synchronized, suitable for home theater, conference presentation or multi-screen entertainment scenarios.
  • [Wide Compatibility] Hdmi splitter Support HDCP 1.4 protocol, compatible with Dolby-AC3, DTS 7.1, LPCM and other mainstream audio formats, adapted to Blu-ray players, game consoles, set-top boxes and other devices.
  • [Plug and Play] Splitter hdmi Comes with a 60cm Micro USB power cable (5V/1A power supply is required), no driver is needed, you can enjoy a stable and smooth split-screen experience with one-key operation.
  • [Safe and Durable Design] Built-in anti-overload protection circuitry to avoid damage from extreme temperatures or voltages; compact body for concealed installation, child safety tips in line with household standards
Bestseller No. 8
HDMI Splitter 1 in 2 Out, 4K HDMI Splitter Not for Extended Display (Mirror Only/Copy Mode),Sends...
  • 4K HDMI Splitter(Not for Extend): This 1x2 HDMI splitter mirrors one HDMI input signal to two HDMI displays, sync transmit high-quality video and audio without loss or delay. it ensures 2 displays receive the same stunning 4K output for an enhanced viewing experience; Note: It's necessary to use power adapter to supply enough power for it
  • Unavailable Functions: This HDMI splitter not support extending display to show different screen on monitors;It cannot connect audio devices like speakers, it cannot support ARC/eARC; Besids, it cannot work as a switcher for multiple input signal devices
  • Wide-Area Transmission: This HDMI splitter support high bandwidth 10.2 Gbps,3D,1080P and up to 4K resolution;For 1080p, it works with AWG26 HDMI 2.0 cable up to 52 ft(in 26ft +out 26ft), allowing you to easily duplicate screens across different rooms
  • Wide Compatible: The NEWCARE HDMI splitter for TV support HDMI 1.3/1.4b ,HDCP 1.4, deep color 12bit, support audio format DTS-HD, Dobly TrueHD, LPCM 7.1, DTS, Doby AC3, DSD, and HD (HBR); it's compatible with various HDMI devices like laptop,PS3/4/5,TV...
  • Package List: 1x 1 in 2 out HDMI Splitter, 1xUSB Cable (Power Adapter not included, please plug the USB with power adapter into a power outlet instead of a cable box); Product size:1.8x2.5x0.55 inch, weight: 0.9 oz; It's compact and portable for easy use
SaleBestseller No. 9
UGREEN HDMI Switch 5 in 1 Out 4K@60Hz, HDMI Splitter with Remote 5 Port Switcher Selector Box...
  • Designed for Multiple Gaming Consoles: Are you tired of constantly switching among multiple gaming devices on your TV? UGREEN HDMI Switch 5 in 1 out makes it a breeze! Connect 5 of your favorite gaming devices such as PS5, Xbox, Switch, Roku, and laptop to your TV with just one input port
  • 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
  • Convenient Remote Control & Manual Switch: Effortlessly switch between gaming devices from the comfort of your couch or bed with the remote control (The control range is within 33 FT). A manual switch lets you switch among 5 devices at any time with a flick of a button. With 5 LED indicators that clearly show you which port is active. NOTE: Automatic switching is NOT supported
  • 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
Bestseller No. 10
HDMI Splitter Cables Male 1080P to Dual Female 1 to 2 Way HDMI Splitter Adapter Cable for HDTV HD,...
  • Function: This Hdmi Splitter 1 in 2 out can operate as a signal router,you may have an image/video in two different screens with the same device model, you can have an image/video on in one room and when you want to switch image/video and keep watching the TV,you just need to switch one TV off and switch the other TV on,and then the signal is routed to the TV in the other room.
  • Feature: Hdmi Splitter 1 in 2 out takes a signal from one device such as a Bluray player and will direct to one or two output devices that are plugged into it (if direct to two devices, these two devices need be the same model). This HDMI splitter cable is great for connecting one HDMI compatible device (Xbox,Blueray,DVD players,for PS3) to two visual output devices with same model.
  • Suitable for: High Definition image resolutions such as 720p,1080i,and 1080p. Package Include: 1 x HDMI Cable. Length: 11.8 inch (30 cm).
  • Note: If both TVs are of the same size,then both TV will show the images when connected. If two TVs are differently modeled, images couldn’t be directed to both TVs simultaneously, ONLY 1 output device active. NOTE: Mirroring/duplication only, does not extend monitor and switcher mode or switch screens between multiple devices!
  • Wide compatibility:High definition image resolution, The HDMI splitter is suitable for most devices with standard HDMI interfaces. Ideal for connecting an HDMI compatible device such as a high-definition DVD, Blu-ray DV

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Last update on 2025-07-10

With an impressive 15-year track record in the world of blogging, I have established myself as an expert in this field. The passion for home entertainment and electronics shines through in work, providing readers with valuable information and guidance on creating the ultimate home theater experience.