Do not buy! I spent several days running wires around my house while building a complex sound system using six cat wires for the controllers. Now that the house is complete I finish the wiring and after connecting a few dozen wires and then testing the other end where the sound system starts I found that 90% of the connections were bad. I had them checked by an electrician and said they were done correctly so it must be the plugs. I cut the tips and redid them with Klein Cat Six tips which you can also find at Revain and they are all perfect. Don't buy them, they're junk.