Norden Category 6 U/UTP Double jacket Steel Tape Armoured with Jelly Filled External Cables exceed Category 6 /Class E specification. It is tested to 250MHz frequency range and designed to support 1000Base-T and 1000Base-Tx applications. Extremely high pair-balance providing excellent EMC (Electromagnetic Compatibility), minimizing radiation, maximizing noise immunity, and providing high alien crosstalk performance to U/UTP (Unshielded Twisted Pair) cabling systems. Cat 6 UTP Double jacket Steel Tape Armoured with Jelly Filled External Cable Consists of PE Insulated 23 AWG Solid Bare Electrolytic Grade Copper Conductors, twisted 4 pair stranded over Cross Separator filler, Jelly filled compound, polyester Tape wrapped around the insulated pairs for moisture absorption, ECCS Tape Armour, black inner & outer PE sheath.