The Youtube買訂閱 Awards: The Best, Worst, and Weirdest Things We've Seen
http://cristianohso402.cavandoragh.org/10-things-your-competitors-can-teach-you-about-youtube-zeng-jia-guan-kan-ci-shu
Even cables with designed-in repeaters frequently make it possible for for an external energy offer being connected. That is just a little added defense to your sign and should be a good idea depending on the predicament