Monoprice 106532 HDMI Extender Over Cat5e/Cat6 Cable, Upto 196-Feet with DDC and HDCP Support Extends High Speed HDMI signals to up to 60 meters using Cat5e/Cat6 UTP/STP Ethernet cabling Supports HDMI video resolutions up to 1080p Supports HDCP copy protection For best results use Cat6 STP cabling Kindly refer the user manual page 5 for trouble shooting steps