The CAT5x 4 Ports AV Extender 330M Transmitter allows you to extend source computer’s video and audio upon maximum 330 meter distance to one monitor or projector. With the built-in video and audio signals enhancement, you can gain the best video resolution quality and audio stereo sound comply with listening. Features: 1.Supports Stereo Digital Audio (2CH) with premium sound performance. 2.Supports the adjustable Stereo / Mono manual sound switch. 3.Uses economical, reliable Category 5 Ethernet cable to connect the local and remote units. 4.Long distance transmission up to 330 meters. 5.Supports the adjustable video gain control to compensate for distance. 6.Supports VGA, SVGA, XGA, SXGA and Multisync monitors. 7.Cascade Chaining 1-Port Tx, 4-Port Tx or 8-Port Tx alternatively. 8.Comply with Windows, LINUX, Mac OS 8.6/9/10 and SUN Solaris. 9.Made in Taiwan. Suggest using STP Cat5 cable, use other poor quality cable may lead to signal weaken that unable to achieve the satisfactory performance.