"This VGA/XVGA Monitor ""Y"" Splitter cable provides an inexpensive alternative for splitting the video signal from your PC's VGA port to two monitors (up to 800 x 600) that use standard 15-pin plugs. Perfect for laptops to display on a separate, larger monitor. Use for short-distance applications only. For higher resolution monitors, use P516-001-HR. For applications that require longer distances and highest resolution, see B114-002-R Powered 2-Port Splitter or B114-004-R Powered 4-Port Splitter."