Fangrui Product Details [192 Khz Dac Conversion] Digital To Analog Audio Converter, Convert Coaxial Or Toslink Digital Pcm Audio Signal To Analog L/r Rca And 3.5mm Jack Audio At The Same Time (not Able To Reverse) [support Volume Adjustment] Headphone Amplifier Function; There Are Professional Audio Amplifier Chips And Volume Adjustment Switches. Allows You To Direct Your Headphones And Adjust Output Volume. A Similar Amp Function Can Provide Better Sound Quality. [192 Khz 24-bit Sampling Rate] Support Sampling Rate At 32 Khz, 44.1 Khz, 48 Khz And 96 Khz And 192 Khz; 24-bit S/pdif Incoming Bit Stream In Left And Right Channels, When There Is No Signal, It Can Be Eliminate Noise Input, And Automatically Mute While Non-audio Signal Input [aluminum Metal Housing] Have Aluminum Metal Housing Which Makes It Durable, Heat-resistant And High Quality; It Can Be Easily Installed And Operated [gold-plated Input And Output] Gold-plated Interface To Reduce Signal Mission Loss. Gold Plated Input Audio Connectors: 1 X Toslink(inculded 1m 4.