CL-500A is wireless streaming and 2*100W stereo class-D audio amplifier module board with WiFi &5G, Blue tooth 5.0, Ethernet, Optical fiber input, RCA input, USB input, Optical fiber output, RCA output, which can be used as an all-in-one DIY solution. It uses high performance DAC TI chip PCM5121, with 32Bit, 384khz, 112db, Range Control, EQ, filtering, market leading low Out-Of-Band noise, can help you enjoy Hi-Fi wireless music life.