1. I2S INTERFACE The digital chip uses WM8804G chip, I2S interface, supports 16 to 24 bit sound data format, supports high sampling rate of 192KHz, the jitter reduction technology can control the inherent jitter within 50ps RMS, the recovery level is very high.
2. DUAL INTERFACE OUTPUT: Output port with optical and coaxial output with two interfaces, convenient for users of external amplifiers; support for hardware way to control volume (I2C interface).
3. Reduce interference: power supply for RasPi power supply, no external power supply, with π filter power supply design, effectively reduces the interference of the power supply, DAC mode without USB interface, does not occupy other expansion GPIOs.
4. POWER DISPLAY: Provide a power indicator, easy observation of the status of the expansion card, fiber interface with fiber optic seats in HiFi quality, coaxial interface with sound isolation transformer to deliver good digital sound while protecting your sound equipment and board very well.
5. Infrared reception function: the built-in infrared reception function of the HiFi expansion card allows for more convenient control of playback when the network is missing.

Technical data:
Item type: HiFi DiGi+ digital sound card.
Material: PCB.
Support: FLAC, WAV, MP3, AAC, ALAC, PLS.
Music Library: NFS and USB drives
Control via: Webui integrated with PC, smartphone, tablet PC.
Support: over-the-air playback function.
Support: for Ramplay.
Sampling options: up to 24 bit/192 kHz

Package list:
1 x HiFi DiGi+ digital sound card.