Fangrui Product Details Use Es9039q2m Jrc5532 Electrolytic Capacitors Use Imported Elna Fever Capacitors Resistors Use High-precision Chip Resistors To Ensure A Good Signal-to-noise Ratio For The Whole Machine Pcb Uses 1.6mm Thick Double-sided Board, 2.0 Ounces Copper Thickness, Tin Spraying Full Process, To Ensure Good Passing Performance Of Large And Small Currents Made Of High-quality Materials, Sturdy And Durable Voltage: Dc 9-12v (5.5 X 2.1 Socket, Inner + Outer -) Output Terminal: Rca Can Be Connected To Power Amplifier, Headphone Amplifier, 3.5 Terminal Can Be Connected To Headphones Input Support: Coaxial: Pcm44.1k~192k 24bit/dop Optical: Pcm44.1k~192k 24bit/dop I2s/dsd: Pcm44.1k~384k 32bit/dsd64, Dsd128, Dsd256 Dsd512 Audio Input Settings: Iis Short, Iis Signal Input Spdif Short, Optical Input Coax Short, Coaxial Input Material: Pcb Color: As Shown (batch Different, Product Parts, Printing Characters Will Be Different, Does Not Affect The Use Of) Package Contents: 1 X Dac Decoder Board Only The Above Package Content