Features: High fidelities audioed quality: Equipped with double ES9038Q2M decoding chips, it can provide high fidelities audioed decoding and playback effects. Multiple input interfaces: Supports I2S input and asynchronous USB modules, making it convenient for users to connect to various audioed sources. Italian interfaces pairing: can be pair with an Italian interfaces, simple and fashionable, enhancing the overall appearance of the product. Advanced decoding technology: using the latest ES9038 decoding chip, it has excellent signal-to-noise ratio and dynamic ranges, which can restore more realistic audioed details. Powerful functionality: Supports decoding of multiple audioed formats, including PCM, DSD, etc., to meet the needs of different users. Stability and Durability: Adopting high-quality electronic components and processes to ensure product stability and long service life. Specifications: Material: Printed Circuit Board Size: Approx. 68.5x30mm/2.7x1.18inch Supported sampling rates: PCM: 16/24/32 bit 44.1/48/88.2/96/176.4/192/352.8/384/768KHz DSD: 64/128/256/512 Power input: Direct Current port DC5V-9V, or screen printing 5V, choose either power supply Signal input: I2S Output: 3.5mm headphone holder, 2.5mm balanced headphone Details: The PCB adopts a double-layer gold deposition process design to ensure good performances in passing large and small currents Dual ES9038Q2M chips, one for the left channel and one for the right channel Having self-developed programs, fully optimizing the decoding chip, resulting in better signal integrity and less signal distortion Adopting dual operational amplifiers, the operational amplifiers are powered by positive and negative power sources The MCLK of ES9038Q2M is an independent clock of 100M, so you only need to input DATA BCK LRCK GND. Note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution. Package includes: 1x Double ES9038Q2M Decoding Board