CAT6A with a foil shield may be harder to terminate because of the shielding, but testing would certainly be a lot easier with no "alien crosstalk" to worry about. Also, when vendors tout 10 gigabit cable, they are just complying with or exceeding the latest draft of the spec, which is not complete yet. That spec will allow compatibility between different vendor's equipment, and will allow 10 gig transmission for 90 meters or 328 feet. Currently, plain old CAT6 will go 10 gig at up to 55 meters. Please someone correct me if I am incorrect about this.
