Is Tech Making IG增加觀看次數 Better or Worse?
http://garrettphrq640.image-perth.org/ig-zeng-jia-guan-kan-ci-shu-it-s-not-as-difficult-as-you-think
Even cables with created-in repeaters generally make it possible for for an external power offer for being connected. That is just a bit further safety to your sign and will be a good idea depending upon the problem