You can use an Ethernet cable splitter to attach multiple computers to one Ethernet cable. A router provides the same function by allowing multiple connections as well. Browse through PC parts sites to find the one that meets your needs. Check out http://www.wlanparts.com for a great selection of Ethernet accessories. Read up on Ethernet connections at
. http://forums.cnet.com/5208-7589_102-0.html?threadID=346331. A router will offer added security and greater customization for your network.
