Has anyone tried or got something like this to work?

tap.jpg

I have a friend who is going to try to get showeq working and he doesn't have any old hubs laying around, or is there a cheaper alternative on the networking side to monitor eq ports? I have a commercial cisco switch and i configured a SPAN port. I know there are amazon items for ~$100 that are powered taps but was wondering if the $10 thing would work. Thanks.