1. Pure digital output, 24-bit 192kHz high-resolution audio performance with a dynamic range and signal-to-noise ratio exceeding 120 dB 2. Supports multiple audio formats including APE, FLAC, Dolby Digital 7.1, and DTS for high-bitrate, multi-channel audio playback 3. Excellent anti-interference performance in digital transmission; when used with optical fiber connectivity, electromagnetic and ground loop interference are effectively eliminated, resulting in improved audio quality 4. Signal-to-noise ratio (SNR) and dynamic range exceed 120 dB 5. Reverse polarity protection, pure digital output at 24-bit 192kHz Type: Portable optical fiber daughter card Input: Optical fiber (SPDIF), USB Type-A Output: RCA PCM word length: 24 bits PCM sampling frequency: 192 kHz Size: 121 x 80 x 18.8 mm Material: Metal Color: Black Package Contents: 1 x 24Bit 192KHz Daughter Card Note: Other items not included. Note: Slight color variation may occur due to lighting and display differences. Measurement error allowed within +/- 1-3 cm.