C2G TruLink HDMI+Serial RS232 over Cat5 Box Transmitter 29271 Resolution Support: 1080p HDMI: 1 x HDMI (Type A) Serial Interface: 1 x DB9 Female Network Interface: 1 x RJ-45 Female Power Supply: Input Voltage - 100-240V Output Voltage/Amperage - 18V, 1.0A Cable Length - 1.5m Plug Diameter - 4.75mm Center Pin Polarity - Positive Specification: Signal Specifications -Video signal support - HDMI -Maximum video resolution - 1080p -Maximum extension - 300ft LED Indicator -Steady blue - The connection to the HDMI display is established -Steady green - There is no receiver or HDMI display detected -Flashing blue and green - The receiver is detected, but no source or display is detected Dimensions: 4.33 x 2.56 x 0.79 Weight: 1.8 lbs.