Features: HDMIcompatible2.1 audio extractor, only available for high-definition audio/optical/coaxial/3.5mm output, supporting extraction function Support 8K@60Hz , 4Kx2K120HzRGB 4: 4:4. HDR10+HDCP2.3 backward compatibility 1. Support for 8K resolution: 8K@60 /30Hz, 4K120 /60Hz 5120x1440@120 /60Hz, 1080P120/60/50/24Hz, RGB4: 48-bit maximumtransmission speed: 48Gbps, ensuring highqualityimage display effect Implement signal separation: The HD385 8K60hz splitter can separate signals from HDMIcompatible input signals, allowing you to input signals into different system or speaker, thereby improving users' enjoyment. Multiple input and output: HDMIcompatible input x1, HDMIcompatible output x1, optical output x1, coaxial output x1. 3.5mm x1, HDMIcompatible output coaxial output x1, coaxial output x1, coaxialaudio input x1, making connection easier. Multi protocol compatibility: supports dynamicHDR, HDR10+, Chroma4:2:0/4:2/4:4:4:4:4. Supports compatibility withHDCP 2.3. Supports variable refresh rate AMDFree SyncG Specifications: Material：Aluminum Alloy Item： HDMIcompatible2.1 Audio Extractor Model：HD385 Output: HDMIcompatible High definition AUDIO ONLY /Optical/Coaxial/3.5mm Audio Output Support Audio Extract function , supports 8K60Hz,4Kx2K120Hz RGB 4 :4 :4 .HDR10+ HDCP2.3 Downward compatibility Size：approx 13.1x5.3x2.9cm/5.16x2.09x1.14in Power Adapter：UK/ EU/ AU/ US Optional Package Includes: 1PC HDMIcompatible2.1 Audio Extractor 1PC 5V Power Adapter 1PC Power Cable 1PC Digital Optical Cable 1PC 3.5MM toRCA Cable 1PC Remote Control note: Due to the problems of lighting effects and shootingangles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.