The Monoprice Blackbird 4K Series Audio Inserter allows you to insert stereo or multichannel surround sound audio signals through a digital Toslink® or an analog 3.5mm input, giving you the ability to add digital or analog audio to an HDMI® video signal. It supports 2-, 5.1-, and 7.1-channel LPCM, Dolby® 5.1, DTS® 5.1, Dolby Digital® Plus, Dolby TrueHD™, DTS-HD Mast Audio™ formats. The Blackbird 4K Series Audio Inserter is fully compliant with the HDMI and HDCP 1.2 standards to ensure compatibility with equipment and components. - Compliant with HDMI®, HDCP 1.2, and DVI 1.0 standards - Supports HDMI audio sampling rates up to 192 kHz - Supports Digital Optical S/PDIF audio sampling rates up to 192 kHz - Supports external Digital Optical or Analog audio replacement for HDMI audio signal - HDMI supports High-Bit-Rate (HBR) audio - Supports DVI conversion with DVI to HDMI adapter - Supports CEC pass-through - Supports 4K resolution and 3D video signals