"Overcome VGA length limitations without compromising signal quality. The TruLink(TM) UXGA Video Signal Booster features built-in amplification and equalization, allowing you to place your monitor up to 210 feet away from the video source. No software is required - installation is as simple as connecting the monitor to one end, the VGA cable to the source end, and connecting the included power adapter. Daisy-chain two signal boosters together to extend the VGA signal even further - up to 420 feet! From use at test benches, to data centers and help desks, classrooms, and multi-media centers, the TruLink Video Signal Booster delivers both performance and value. Featuers Enables a monitor to be placed up to 210 feet from the source. Daisy-chain two TruLink Signal Boosters to extend the signal up to 420 feet. Supports video resolutions up to 1920 x 1440 @ 60Hz. Suitable for VGA, SVGA, XGA, SXGA, UXGA, and Multisync monitors. Input connectors: 1 HD15 male. Output connectors: 1 HD15 female. Power adapter: 7.5V AC; 800mA."