Features 1、USB Sound Card: This USB sound card converts USB signal to coaxial digital signal output. Note that there is no analog output and a decoder needs to be connected to the power amplifier, if the power amplifier comes with a coaxial input, it can also be used. 2、Easy Connection: No driver is required to connect to the computer USB, and it can also be connected through the mobile phone OTG. 3、Active Crystal Oscillator: Utilizes active crystal oscillator for better clock jitter performance compared to passive ones. Coaxial output through isolation transformer for enhanced performance. 4、Curved PCB Design: The PCB board adopts curved wiring to reduce signal delay and rebound caused by wiring, and improve the performance of signal processing. 5、High Performance: Adopting copper gold plated coaxial socket. With high resolution, elastic bass, thick vocal, beautiful sound quality. Specification Item Type: USB Sound Card Material: PCB, Acrylic Package List 1 x USB Sound Card