HDMI Audio Embedder Inserter Digital Analog Audio + DVI to HDMI Support TOSLINK Optical 3.5mm Jack AUX Sound Input 4K60Hz 18Gbps HDR HDCP2.2

4K Series audio inserter allows you to insert stereo or multichannel surround sound audio signals through a digital To slink or an analog 3. 5mm input, giving you the ability to add digital or analog audio to an HDMI video signal.The HDmatters' 4K HDMI audio embedder is fully compliant with the HDMI and HDCP 2.0 standards to ensure compatibility with equipment components. Important note: 1)This item listed is not a hdmi audio extractor. The toslink and aux port is for audio insert. 2)This is an entry-level HDMI audio embedder, there might some sync delay with video. Pls give it some tolerance. Features: Embeds multi-channel optical (S/PDIF) or Line analog audio to HDMI output Analog audio supports PCM2.0 Optical audio supports LPCM 2CH, Dobly Digital 2/5.1CH, DTS 2/5.1CH Video resolutions up to 4K2K@50/60Hz (YUV444) HDMI 2.0b (18Gbps), HDCP 2.2 and DVI 1.0 compliant 10bits HDR (High Dynamic Range) pass through Supports HDMI High Bit Rate(HBR) audio pass through Supports CEC bypass What's in the package: HDMI audio inserter X1 USB power cable X1

• ‌【Digital/Analog Audio to HDMI Embedder】Replace the audio from any HDMI source with external digital (optical TOSLINK/SPDIF) or analog (3.5mm / line) audio. A simple switch lets you choose which audio source is embedded into the HDMI output – no cable swapping required. The original HDMI audio is replaced, not mixed. You can also select Pass mode to keep the original HDMI audio unchanged.Note: Always select the correct input channel (Line/Optical/Pass) on the switch for proper audio transmission.
• 【High Resolution】Supports up to 18Gbps, 4K@60Hz 4:4:4, plus 1080p and 720p. Works with DVI sources via DVI-to-HDMI cables – the video signal (HDMI or DVI) is combined with your chosen external audio.Note: Only HDMI or DVI input is supported; DP or VGA-to-HDMI cables will not work. If no HDMI input is detected, the display will show a colored test pattern as a signal-loss indicator.
• Audio Format Support】
• HDMI Pass-through mode: all formats pass through (PCM, LPCM, Dolby, DTS).
• Optical input: supports Dolby, DTS, and PCM.
• 3.5mm analog input: supports 2‑channel stereo (PCM).
• Line = 3.5mm analog input Optical = optical (TOSLINK) input Pass = original HDMI audio (unmodified)
• 【High‑Level Features】HDMI 2.0, 10‑bit High Dynamic Range (HDR), Dolby Vision, and HDCP 2.2/1.4 compliant.
• 【Easy to Use】Plug and play – no software or drivers needed. Perfect for matching audio from any external source to your HDMI display.Important: Requires external 5V DC power via the USB cable (standard charging block, fast charging not supported).Comes with 12 months maintenance service and 24/7 technical support from a dedicated team.