Lotsa questions here....what do the different colored cables mean ? yellow is cat 5e? seems to work for my fiber optic dsl - can plug directly into my xp laptop, but my 98se pc needs it to go to a router first (netgear wireless) . ANd the blue cable seems to work from the router to the pc. Ahhh, but the wireless won't go thru cinder block to my office in the "L" shape house. My house has "dsl wiring jacks" in a couple rooms. There are jumpers so i can use (only yellow??) cables to extend the dsl from where it comes in, at the other end of the house (and where the desktop is to be) to my office, but I'd like to "split" off the incoming signal to go to BOTH the router AND the inhouse wiring. Is there such a thing or do I have to buy ANOTHER box? Or....can I use the router as a splitter - i.e. input yellow cable to router, then output one blue cable to win98se pc and another yellow cable to the inhouse wiring so I can plug my winxp pc into the jack at other end of house? Thanks for your time and help! Mike

The color of the casing doesn't matter...what does is the Category rating. ie: Cat3, Cat5, Cat5e etc You can indeed set it up as you'ld like but you may need to buy a switch if your router only has one LAN port. If it has 4, then plug the appropriate cable in to one of the free ports. If not, you may have to buy a small hub or switch (switch is preferable) with 4 to 8 ports. Then, plug the router and all other cables into the switch to share.