Scale a single HDMI input across 4 displays (2x2, 4x1, 1x4) Larger video walls (up to 15x15) can be created by using additional Scalers combined with HDMI splitters Bezel correction and picture adjustment Supports Input resolutions of up to 3840/4096x2160p 2 year warranty The 4K HDMI Video Wall Controller Scaler allows a 4K UHD HDMI input source to be freely arranged on 4 displays (TV or monitor) in a variety of arrangements (2x2, 4x1, 1x4). Larger video walls (up to 15x15) can be created using a HDMI splitter and multiple Scalers. Each output can be adjusted for bezel correction, contrast, brightness, saturation and hue so that you can optimise the appearance of your video wall. This flexible feature rich product has been designed to be used in a number of different appliCat.ions, such as:    Public/Retail Advertisement    Digital Presentation    Broadcasting & Control    Surveillance & Control    Conference & Meeting Room The Scaler, or multiple Scalers in larger installations, can be controlled by a simple control appliCat.ion (see downloads) or via RS-232 and Telnet using the commands listed in the user manual, making it simple to integrate within your installation.