Black Twisted 3 Core Vintage fabric Cable - Vintagelite
A twisted cable is a specialized type of electrical cable made of two or more insulated wires twisted together to form a single bundle. The twisting helps to reduce electromagnetic interference (EMI) and crosstalk in the cable, making it an effective choice for use in high-speed data transmission applications

https://www.vintagelite.co.uk/....products/black-twist