Check the listing for details. USB Digital Interface Standard Version Optical Interface Receiver Module. Condition: New. Listed at 25.13 USD. Description Italian USB Digital Interface Standard Version Optical Interface Receiver Module for I2S/Coaxial/Optical/Analog Conversion Difference of two versions: - Standard version: pure copper gold-plated RCA - Upgraded version: advanced gold-plated RCA Description: - All chips used on the board are imported and original, and two sets of LDOs are designed to separately power the analog and digital circuits. Large capacity solid-state capacitors and tantalum capacitors are used for filtering and decoupling to ensure stable and clean power supply, effectively improving the overall output signal-to-noise ratio. Features: - For PCM9211 chip is comparable to original professional level digital audio transceiver chip for TI; Supports up to 216K sampling rate, with ultra-low jitter function and performance of coaxial transceiver clock