Audio-receivers and video-receivers; Calculating machines; Communication hubs; Computer hardware; Computer memory devices; Computer peripheral devices; Computers; Data processing apparatus; Electrical adapters; Integrated circuit cards and components; Integrated circuits; Interfaces for computers; Laptop computers; Optical cables; Optical fibres; Optical receivers; Printed circuit boards; Printed circuits; Rechargeable electric batteries; Tablet computers; Apparatus for transmission of commun...