1、1920x108P 60HZ: HD multimedia interface adapter is plug and play, the maximum resolution supported 1920x108P 60Hz, backward compatibility. 2、UP TO 120KM: Transmit HD audio and audio signals to users up to 20KM and up to 120KM via optical fiber, the device supports TCP/IP network protocol. 3、IR SUPPORT: Digital HD extender supports IR back transmission, independent audio transmission, remote control of signal sources (host KVM, TV box IR IR) to ensure signal stability. 4、ONE TO MANY: HD extender can transmit from one transmitter to multiple receivers via Ethernet switch, remote transmission while supporting local HD multimedia interface output. 5、IMPROVED COMPATIBILITY: The HD multimedia interface adapter's EDID built in audio greatly improves the device's compatibility. 2 x HD Multimedia Interface Extender1 x User Manual2 x Power Cord1 x Connection Cable1 x IR Cable Item Type: HD Multimedia Interface ExtenderMaterial: Aluminum AlloySupported Protocols: HD Multimedia Interface 1.3, HDCP 1.2Maximum Resolution Supported: 1920x108P 60Hz Backward CompatibilityRecommended Maximum Transmission Distance of Network Cable: Up to Approx. 120meters / 393ft Using Pure Copper Category 6 Network CableVoltage: 100-240V