Neural web

Neural webs are an advanced form of brain-computer interface developed by TERRATECH in the 2400s. Initially developed for the human brain, it has recently been enhanced so as to function with other species. 
It allows for the telepathy between users, as well as control of various technological instruments. Additionally, it can transfer data to and from the brain of the user at a high bandwidth. The most advanced models can host an AI which will be in Alpha class communion with the user. This is a de facto extreme enhancer of cognitive and memorial abilities. 
The technology was first developed by the Terran State Corporation for a military project, Programme 2273c. It was done in collaboration with REX and BEMiR. After the dissolution of the Terran State Corporation, the technology was granted to Biotech and Clarktech, with the former having an exclusive capacity of installing it. 
Despite its age, the technology remains extremely expensive, to the point where an individual within the Terran Federation is unable to ever afford it due to wealth distribution in the country. Due to its immense power, it is very tightly controlled and anyone receiving a web must go through a lengthy approval process by the Federal Office of Drugs. As a result, only people selected by the government or the largest corporations, such as corporate emissaries, army officers, technocrats and scientists, are able to get access to this technokogy.