This is a chip made of organic materials. Sagittarius Xiang Shan even suspects that if this chip were swallowed by an Earth creature, it might be broken down by digestive enzymes.
This complex device is embedded within the spear squid's thick nerves, with several metal wires extending from the surface of the chip. It is said that these squids also have artificial neural networks inside them—not the kind humans have, but something more rugged.
The reason humans use nanoconductor wires as the basis for so-called artificial neurons is because human neurons are extremely slender and their neural networks are dense and complex. Only nanoconductor wires can successfully penetrate inside neurons and establish new neural circuits within the brain without causing significant damage to glial cells.