Four LAN ports need three more

[subject matter]

if i have four LAN ports on my modem+router , three of which are already occupied and i wish to add another three PCs to the same network, what hardware should i add to the fourth LAN RJ45 port so as to attach the other three PCs too.

 

[PhilFrisbie]

Get a 4 or 5 port switch. Connect a cable from it to your router, then connect the other PCs to it.