1. 16-Bit (24-Bit) Digitally Encoded Audio 2. Support Point-to-Point or Daisy-Chain connection 3. Single-Mode Fiber optic transmit up to 20km(12.4miles) without Optical Attenuation, Compatible with multimode fiber up to 500m(0.31miles). 4. No , RFI, Talk or Video Distortion and no ground loops 5. LED Indicators for Instant System Monitoring Plug and play, easy installation. Good ventilation, good heat dissipation Standalone or Rack Mount Applicable environment: 1. Intercom System 2. Public Broadcasting System 3. Intelligent Traffic Monitoring System (ITS) 4. Security system 5. TV care 6. Remote multimedia teaching / campus monitoring 7. TV and telephone conference 8. Long-distance radio and television transmission system 9. Building control system Note: Don't allow amplifier signal to connect to Transmitter, it be burn. colour: black Material: plastic + metal Package Contents: 2 x Media Converters Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.