I previously have run, and a friend terminated, 7 cable runs using a large roll of cat6 cable he had left from a job. I now need to run several more but am confused by all the different specs. I thought I’d just be able to buy a 100m unterminated roll and get on with it. Confused by why it states MHz on some. Presume I need solid copper. Has anyone got a link for something they can recommend?