Connect a DVR with VGA output to an existing monitor with BNC input. The ADI PRO VGA Converter includes dual composite S-Video, BNC and VGA output ports, as well as a USB power supply (5VDC). NTSC/PAL video standards are supported, with a maximum resolution of 2560x1600. Auto configuration is available for resolutions up to 1024x768 (up to 75Hz), and an on-screen display (OSD) allows for easy adjustments to image size, brightness, contrast, hue, saturation, sharpness and more.