1. Pure digital output, 24-bit 192kHz high specification with a dynamic range and signal-to-noise ratio exceeding 120 dB 2. Supports multiple audio formats including APE, FLAC, DTS, and 7.1 digital surround sound for high bit rate and 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 minimized, resulting in improved audio quality 4. Dynamic range exceeding 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: Light and different displays may cause the color of the item in the picture to vary slightly from the actual product. Measurement allows an error of +/- 1-3 cm.