Originally Posted by
Funkstar
I don't see how this would work.
These things are meant to double up the ports on a cable, but you need one on each end of the line. 10/100mbit ethernet doesn't use all the pins in a Cat5/6 cable, so you can split it and use some pins for one connection and other pints for the second. However, you need to split them back out to the correct pin usage before connecting anything to that line.
This is meant for situations where you have plenty of space in your switch (or the switch built into your router), but can't run another cable into a particular room for whatever reason. Using this still requires two data ports in the switch.
A second switch (though you could get away with a hub) is the proper way to do what this does.