1. Reliable quality, can achieve electrical isolation, prevent digital noise from being transmitted through the ground wire, and help to improve the signal-to-noise ratio of the DAC 2. Effectively reduce the interference of audio signals around the equipment 3. PVC shell, flame retardant, high temperature resistance, strong pressure resistance 4. Mini design, easy to plug and unplug 5. It can turn the optical fiber with square ports at both ends into square port and circle port, which is convenient for use 6. The square interface is commonly used in: DVD, power amplifier, TV, speaker equipment, etc.
