4K HDMI Splitter 1 in 2 Out - Mirror 4K@60Hz and 1080p@240Hz

In this review the 4K HDMI Splitter 1 in 2 Out is judged on practicality and reliability for anyone who needs to duplicate a single HDMI source to two displays. The bottom line: it is best for home theaters, gamers, or small offices that want identical output on two screens without complicated configuration. The reviewer found the unit reliable at maintaining high bandwidth and simple to set up, with the single biggest reason to buy being its consistent 18Gbps throughput and automatic downscaling that lets two different displays show their best supported resolution simultaneously.

Key Features

• Dual HDMI Output: Sends the same video and audio to two displays at once so both screens mirror the source without a loss of signal quality.
• 18Gbps Bandwidth: Maintains high data throughput for smooth 4K@60Hz and 1080p@240Hz playback, reducing the chance of artifacts during fast motion scenes.
• Auto Downscaling with EDID: Manages EDID and automatically downscales when displays have different capabilities so each monitor shows the highest resolution it supports.
• Wide Compatibility: Works with modern consoles, TVs, projectors and amplifiers and supports HDCP 2.3 and HDCP 2.2 for protected content playback.
• HDR and Dolby Vision Support: Preserves enhanced color and contrast on compatible displays to keep HDR content looking vibrant on both outputs.

Who It's For

The splitter is a good fit for gamers who want to mirror gameplay to a TV while playing on a monitor, streamers who need the same feed in two rooms, and small meeting rooms where a single source must feed two displays. Its support for consoles such as PS5 and switches that require HDCP compliance makes it versatile for entertainment setups.

People who need extended desktop functionality should look elsewhere because this unit only duplicates the source to both outputs rather than extending the desktop. Also, it does not downscale to 720p or 480p, so those using older low-resolution displays should confirm compatibility before purchase.

Pros & Cons

Pros

• Reliable mirror output with full support for 4K@60Hz and 1080p@240Hz for high-refresh displays.
• Automatic EDID management and auto downscaling let mixed-resolution setups show each display's best quality.
• Broad device compatibility and HDCP 2.3/2.2 support simplify connections to consoles and sound systems.

Cons

• Does not support extended screen modes; only mirror/duplicate output is available.
• No support for downscaling to 720p or 480p, which limits use with very old displays.

Specifications

Model	UHD-1440 Splitter
Inputs / Outputs	1 HDMI in, 2 HDMI out
Maximum Resolution	4K@60Hz, 1080p@240Hz
Bandwidth	18Gbps
HDCP	HDCP 2.3 and HDCP 2.2
Features	EDID management, Auto downscaling, HDR and Dolby Vision support
Package Includes	Splitters, DC 5V power adapter, user manual

Our Verdict

The 4K HDMI Splitter 1 in 2 Out is a solid, no-nonsense choice for anyone who needs to mirror a single source to two displays with reliable 4K@60Hz performance and automatic EDID handling. It delivers good value for home entertainment and small meeting setups, especially when HDCP and HDR compatibility matter, though users needing extended desktops or support for very low resolutions should consider alternate devices.

Frequently Asked Questions

Can this splitter send different resolutions to each display?
Yes, it supports automatic downscaling and EDID management so each display will show the highest resolution it supports, including simultaneous 4K and 1080p output.

Does it support HDR and Dolby Vision?
Yes, the unit supports HDR and Dolby Vision and also handles 4:4:4 chroma for vivid color reproduction on compatible displays.

Will it work with modern game consoles?
Yes, it is compatible with consoles such as PS5 and supports HDCP 2.3 and 2.2 for protected content, making it suitable for gaming and streaming setups.