avedio links 4K HDMI Splitter 1-in-2 with Audio Support

This avedio links 4K HDMI splitter mirrors a single HDMI source to two displays or a display plus an HDMI soundbar, delivering up to 4K@60Hz video and multi-channel audio like Dolby Atmos with simple plug-and-play setup.

If you need the same high-resolution video and synchronized audio sent to two HDMI devices at once — for example a 4K TV and an HDMI-capable soundbar or a second TV for a secondary zone — this compact splitter handles 4K HDR sources and advanced audio formats. It’s designed for living rooms, small conference rooms, or gaming setups where mirroring is required rather than extended desktop arrangements. Note that protected streaming services depend on HDCP compliance and this unit does not provide ARC/eARC passthrough or mobile-phone compatibility.

How does this splitter handle mixed-resolution displays?

The unit includes an M-A-B EDID selector that controls how each output negotiates resolution with connected displays. Use the Mix (M) mode to allow each screen to display its highest supported resolution if the difference between displays is small; use A-copy or B-copy to force both outputs to follow the EDID of Output A or Output B respectively, causing the other output to downscale if necessary.

• M (Mix) mode: automatically grants the best resolution when differences are within one level.
• A-copy: both outputs follow Output A’s EDID — ideal when primary display is higher capability.
• B-copy: both outputs follow Output B’s EDID to match a less capable display.
• Works for common combos like 4K TV plus 1080p soundbar or dual 4K TVs.

What video and refresh rates are supported for gaming and media?

This splitter supports a broad range of resolutions and refresh rates to suit consoles, PCs, and streaming devices: up to 4K at 60Hz, high-refresh 2K and 1080p modes, and uncommon ultra-wide formats. For best results use HDMI 2.0 cables and keep cable runs within recommended lengths to maintain stable bandwidth.

• 4K@60Hz and HDR10 / Dolby Vision support for vivid media playback.
• 2K up to 144Hz and 1080p up to 240Hz for gaming flexibility.
• Ultra-wide formats like 3440×1440@60Hz supported (within 18 Gbps limit).
• Recommended cables: HDMI 2.0, ≤16.4 ft for 4K, ≤32.8 ft for 1080p.

Which audio formats and devices work with this HDMI audio splitter?

The splitter passes advanced multichannel audio streams so your soundbar, AV receiver, or HDMI-capable speaker system can receive Dolby Atmos, DTS:X, and other high-quality audio, provided the source and display chain support them. It mirrors audio to both outputs simultaneously, synchronizing sound and picture across devices.

• Supports Dolby Atmos 7.1, Dolby Digital, TrueHD, DTS:X and DTS-HD Master.
• LPCM up to 7.1 channels for uncompressed audio delivery.
• Ideal for HDMI soundbars or AV receivers with HDMI IN ports.
• Does not provide ARC/eARC return channels — use direct HDMI IN on soundbars.

What do I need to know about copy protection and device compatibility?

Protected streaming content from services like Netflix or Amazon Prime Video may require HDCP compliance at each output; if a connected display or the splitter chain doesn’t meet those HDCP rules, playback of protected titles may be blocked. Also, this splitter is not designed for mobile phones and functions best with set-top streaming devices, consoles, media players, PCs, and TVs.

• Supports HDCP 2.2 for many protected 4K sources, but playback depends on the entire chain.
• Not compatible with mobile phone HDMI output adapters.
• Plug-and-play with included 4 ft HDMI cable and 5V/1A power adapter for stable operation.
• Not suitable for extended desktop setups — mirroring only.

Who is this for? This avedio links splitter is aimed at home theater enthusiasts, gamers, and small-office users who need to mirror a single HDMI source to two HDMI inputs — for example sending a Fire TV Stick or PS5 to a main TV and a soundbar or a second display. Choose this model if you require HDR and immersive audio pass-through, flexible EDID control for mixed-resolution setups, and a compact, powered box that’s simple to install.