Will 유튜브 커뮤니티 Ever Die?

https://www.evernote.com/shard/s530/sh/c6068569-df9c-a7de-1968-c5fab3b81094/24362e0f3d556812648c8e6cfe00bc26

Generally, signal boosters and repeaters need to have an external electricity source to boost the signal, but as a result of its design, HDMI can actually be prolonged without the need of an exterior electricity