It is made up of four pairs of unshielded twisted pair cables with Aluminium foil wrapped all over personal pairs and an In general Aluminium foil throughout the cables for external sounds reduction and lowered EMI. https://kaitlynrmjl176703.azzablog.com/29288926/the-smart-trick-of-extell-dubai-cables-network-cable-patch-network-hub-that-no-one-is-discussing