The CAT 7 network cable is a four-pair data cable for transmission frequencies over 600 MHz/1000 Mbit, two leads are each twin-stranded and shielded with an aluminium-coated film of plastic. All pairs are additionally shielded with a braid made from galvanized copper. The sheathing is halogen-free. The reduced cable diameter permits the use of RJ45 network plugs. The cable is characterized by very low skew values (5ns/100m).