This analog audio converter is easy to Setup. Plug and play, no software and driver required. Easy to operate and use, it can adjust volume, supports 3.5mm hole, practical and durable. 3.5MM output optical fiber coaxial number to analog audio converter, very practical and useful. Features - ColorSilver -Material:Aluminium alloy, overgild - Size: 6.80X5.26X2.46cm/2.67X2.07X0.97in - Digital to analog audio converter is specially designed for home or professional audio switching. - You can also output by 3.5mm headphone jack, connect high-fidelity headphones, this converter is small and easy to install, built-in high-fidelity amplifier chip. - Convert coaxial or digital audio signal to analog Light and Right audio, and connect to external equipment, such as amplifier through standard type. - The product supports power off and volume adjustment, making it easier to adapt to different sources and different environments. - The product also supports input to Analog Light and Right or 3.5MM audio signal, coaxial output. Specification - Audio input connector: optical fiber cable, 1xRCA (coaxial) - Audio Signal Output:L/R audio or 3.5MM audio signal - Audio Output connector: 2XRCA(R/L) 3.5MM audio hole Output digital audio connector: , 1xRCA (coaxial) - Sampling rate: 32, 44.1, 48, 96 KHz Package list: 1 Converter 1 x USB wire