Features: Brand new and high quality PCB adopts double-layer immersion gold process design to ensure good passing performances of large and small currents High quality active crystal oscillator. Have its own development program, complete optimization of the decoding chip, better signal integrity, less signal distortion. Double amps are used, and the amps are powered by positive and negative power supplies. The MCLK of the ES9038Q2M is an independent clock of 100M, so you only need to input DATA BCK LRCK. Specifications: Material:PCB Type:Double 5532 or OPA1612andAD839 Size:Approx.30x68.5mm or 1.18x2.69inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Decoders Board