HDMI Splitter 1 in 2 Out 4K 120Hz 8K 60Hz - Dual Mirror Display

In this review of the HDMI Splitter 1 in 2 Out, the bottom line is simple: it is for anyone who needs to send a single high-bandwidth HDMI source to two identical displays while preserving high resolutions and advanced audio formats. The reviewer found it especially useful for gamers and home theater setups because it supports 8K@60Hz and 4K@120Hz passthrough, plus modern audio formats, so consoles like PS5 or streaming devices keep their quality when mirrored to two screens. It is not for users who need extended desktop mode; this is a mirror-only splitter.

Key Features

• Dual mirror output: Copies one HDMI source to two displays simultaneously so both screens show identical video and audio with no extended display support.
• High-resolution support: Handles up to 8K@60Hz and 4K@120Hz to preserve sharp visuals on modern TVs and gaming monitors.
• EDID management: Automatic EDID with modes to copy Out-A to Out-B or Out-B to Out-A, helping the splitter negotiate the best shared resolution and refresh rate.
• Wide audio compatibility: Passes Dolby Atmos, DTS X, Dolby TrueHD and PCM 7.1 so surround sound and soundbars remain functional when splitting the signal.
• Flexible cable reach: Provides practical cable distance guidance, such as 10 ft input/output at 8K/4K@120Hz and longer runs at lower resolutions for reliable installations.
• Broad device compatibility: Works with consoles, streaming sticks, Blu-ray players, Hue Sync Box and many HDMI devices for versatile home AV setups.

Who It's For

This splitter is best for gamers, AV enthusiasts and small venues that need identical output to two displays without sacrificing resolution or audio features. If you run a PS5 or high-frame-rate PC and want the same picture mirrored to a second TV or projector while keeping HDR and Dolby audio, this device fits that need.

It is not aimed at users who require an extended desktop for productivity or those who need independent display scaling. Also, very long cable runs at the highest resolutions will be constrained by the cable and source capabilities described in the product guidance.

Pros & Cons

Pros

• Supports modern high-bandwidth formats up to 8K@60Hz and 4K@120Hz for gaming and home theater fidelity.
• Automatic EDID options help ensure both displays use a consistent refresh rate and resolution.
• Pass-through of advanced audio formats keeps surround sound and soundbars functional.

Cons

• Mirror-only operation means no extended display mode for dual-monitor productivity setups.
• Maximum cable distances at top resolutions are limited, so very long runs may require signal extenders or higher quality cables.

Specifications

Our Verdict

The HDMI Splitter 1 in 2 Out is a solid choice for anyone who needs mirrored output to two displays without losing high-resolution video or advanced audio. It offers practical EDID management and broad compatibility, making it good value for gamers and home theater users who want consistent picture and sound on both screens, provided they accept mirror-only operation and respect the cable distance limits.

Frequently Asked Questions

Can this splitter extend displays?
No, it only supports dual copy/dual mirror display and does not provide extended desktop functionality.

Will it pass Dolby Atmos to a soundbar?
Yes, it supports Dolby Atmos and other advanced audio formats so a soundbar or AV receiver can receive the audio signal.

How far can cables run at 4K?
Guidance in the product notes indicates about 15 ft input and up to 30 ft output at 4K@60Hz; top resolutions have shorter recommended runs.