It contains 4 pairs of unshielded twisted pair cables with Aluminium foil wrapped about individual pairs and an General Aluminium foil across the cables for exterior sound reduction and lowered EMI. it's LSZH Sheath https://jayyesb380416.webbuzzfeed.com/29694175/the-ultimate-guide-to-extell-dubai-cables-network-cable-patch-network-hub