Two micro-coaxials for data, shielded with silver-plated copper foil tape (milspec grade). Overall shield onto those, and they are wrapped in a nylon braided jacket.
Over that, 16 individually-insulated conductors are braided and split into two groups of 8: 1 group for power, 1 group for ground. Because EM and ES fields propagate OUTWARDS and not inwards, noise traveling on these will not affect the data lines.
Further, because the data lines are completely shielded - they are not only precise impedance, they are shielded from noise.
All of it is jacketed again underneath nylon braid.
The cable is very small (thin), but very complicated. Termination takes a long time, and is partly done underneath a 3 diopter magnifying glass because the little conductors for power and ground are too small to work with using only the bare eyes.
Reference 3A MM de capo i
Aurender N100H> Rockna wavedream > YBA IA350
203> LX-901 >JBL LS Center > M&K SS150T
Isol-8 Substation LC
Nordost Valhalla1+2, Viard Silver USB