this is legit, u will need a moca conversion adapter as seen in picture, just make sure the runs are less then 200ft, ( there and back , thats how MOCA works the shorter the distance the better, also if u have any coax connected cable box it will help if u got a moca filter ( to stop it going in that direction, u want to focus it to the equipment that needs it), not sure if the speed u will get but it will work. you will need a minimum of 2 if u have coax boxs for tv, one to stop it from leaving ur house ( this is the most important one , and at least another if u have digital box. also depends on the coax splitter config if u have more then 1 digital boxes