The 840Hxl is a high performance HDMI video test pattern generator. It generates 32 preset patterns at 16 popular computer, HD and seven user−defined resolutions. It includes several unique patterns that incorporate motion.- Patterns - 32.- Output Resolutions - All common PC and HDTV resolutions.- Color Space - RGB, YUV 444, YUV 442 & auto.- Embedded Audio - 6 sample rates & 3 bit depths.- HDTV Compatible.- Controls - HDCP On/Off, Embedded Audio On/Off.- Indicators - 2−digit display, power LED.- Control - USB and RS−232 ports for connecting to a controlling PC (PC control software included).- Compact MultiTOOLS® - 4 units can be rack mounted side−by−side in a 1U rack space with the optional RK−1 universal rack adapter.