Technology for a neural interface is described. The neural interface can include an intracranial electrode grid operable to detect neural activity. The neural interface can include a subcutaneous microelectronic signal processing unit operable to process the neural activity in order to obtain digital neural activity information. The neural interface can include a cable connecting the intracranial electrode grid and the subcutaneous microelectronic signal processing unit. The neural interface can include a wired connector attached to the subcutaneous microelectronic signal processing unit that is operable to transmit the digital neural activity information from the subcutaneous microelectronic signal processing unit to an external signal processing device.