The document is an installation and operation guide for the AJA Hi5-3G, a video converter that takes 3G, HD, or SD SDI video inputs and converts them to HDMI output with embedded audio. It has features like support for 10-bit and deep color video on the HDMI output as well as additional analog audio outputs. Setup and control is done through a USB connection to a computer running configuration software. The guide describes the product's I/O connections and typical installation process of connecting cables and power.