Four in metal foil (ViMF) is the German designation for an F/UTP cable with two twisted two-wire lines
that are jointly shielded by a metal foil. The type of stranding can be a star quad or two twisted pairs of wires. The designation four in metal foil is the official designation of the VDE. If the individual wire pairs are shielded, this is referred to as Pair in Metal Foil (PiMF).