eSynic 4K@30Hz HDMI Splitter 1-in-2 Mirror

The eSynic Portable 4K/30Hz HDMI Splitter is a compact 1-in-2 HDMI device that mirrors a single HDMI source to two displays simultaneously (mirror only, no extend).

Designed for home theaters, gaming setups, classrooms, and small meeting rooms, this eSynic HDMI splitter duplicates one HDMI input to two HDMI outputs with support for up to 4K resolution at 30Hz and multiple common video formats. Its aluminum alloy shell, 24K gold-plated connectors, and a noise-reduction transmission chip aim to deliver reliable picture and sound while minimizing interference. The unit is plug-and-play for quick installation and works with many HDMI 1.4-compatible devices — note it does not support extend mode or HDCP handling.

How does this splitter handle video and audio quality?

The eSynic splitter supports 4Kx2K at 30Hz and a broad range of lower resolutions including 1080p and 720p, preserving both video and stereo audio across both outputs. A lossless transmission chip and gold-plated HDMI ports help reduce signal degradation and electromagnetic interference.

• Resolutions supported: 4K@30Hz, 1080p@60Hz, 720p and legacy formats
• Deep Color and multiple interlaced/progressive formats supported
• Aluminum alloy body and 24K gold-plated connectors for stable signal
• Noise-reduction chip to maintain clear audio/video output

Which devices and setups are compatible with this splitter?

This 1-in-2 splitter works with most HDMI 1.4 and earlier devices such as laptops, Blu‑ray players, gaming consoles, streaming sticks, and projectors. It mirrors the source to two displays at once and is ideal when you need the same image shown on two screens.

• Input: PCs, PS4/PS4 Pro, Xbox, Blu‑ray, Fire Stick, Chromecast, Roku, satellite boxes
• Output: HDTVs, monitors, projectors that accept HDMI
• Does not support HDMI extend mode — both outputs show identical content
• Not compatible with HDCP negotiation functions; check source DRM requirements

How easy is installation and what precautions should I take?

Setup is plug-and-play: connect the HDMI source to the input, hook up two HDMI displays to the outputs, and power the unit if an external supply is required. To prolong the splitter’s life and avoid connection issues, always power off devices before inserting or removing HDMI cables and handle connectors gently.

• Plug-and-play — no drivers needed for most systems
• Power off devices before connecting/disconnecting to protect ports
• Gently insert and remove HDMI cables to avoid damage
• Compact, portable metal housing for travel and fixed installations

Who this is for: The eSynic 4K HDMI Splitter suits users who need to display identical video to two screens — such as store displays, classrooms, conference rooms, or dual-screen demo stations. It’s also useful for gamers and media enthusiasts who want the same gameplay or movie feed on a TV and a projector simultaneously. If you require different content on each screen (extend mode), HDCP-protected streaming with DRM handshakes, or 4K@60Hz performance, consider alternatives tailored to those needs.