Aten 2-Port Video Splitter (VGA Splitter VS92A)

http://www.aten.com/global/en/products/professional-audiovideo/video-splitters/vs92a/#.WKxc5VV97Dc

2-Port VGA Splitter (350MHz)
VS92A
The VS92A is a video splitter that not only duplicates the video signal from any VGA, XGA, SVGA, UXGA, or multisync monitor to two outputs, but also boosts the video signal over a distance of up to 30 meters. Cascadable to support up to 8 displays, and offering bandwidth up to 350 MHz, the VS92A is ideal for broadcasting and enhancing video information to the public, monitoring your work environments from safe locations, or offering superior video for company or classroom training.

One video input to 2 video outputs
Cascadable to 3 levels - provides up to 8 video signals
Supports 350 MHz bandwidth
Long-distance transmission - up to 30 m *
Superior video quality - 1920 x 1440@60Hz
DDC, DDC2, DDC2B Compatible (Port 1 only)
Supports VGA, XGA, SVGA, UXGA,WUXGA and multisync monitors
All metal casing

* Video content sent over very long distance using a VGA cable might result in slight degradation of the video signal and quality.