The Extron IN1604 HD is a high-definition scaling presentation switcher designed for professional video production and editing. This unit features 4 inputs and 1 output, with HDMI connectivity for seamless integration. The built-in scaler allows for easy conversion and scaling of video content, making it a versatile solution for various presentation setups. Made in the United States by Extron, a trusted brand in the industry, this switcher is ideal for those seeking reliable and top-quality equipment for their video production needs.