Information technology and audio-visual, multimedia and photographic devices; amplifiers; analog-to­ digital converters; distribution amplifiers; multiport controllers; power amplifiers; USB (universal serial bus) hardware; signal amplifiers; communication equipment; audio transmitter units; digital signal processors; electronic signal transmitters; signal converters; signal transmission apparatus; switchboards; transceivers; transmitters of electronic signals; computer networking and data communications equipment; computer network adapters; computer network bridges; computer networking hardware; ethernet adapters; ethernet hardware; LAN [local area network] hardware; optical networks; signal cables for IT, AV and telecommunication; audio cables; cable connectors; coaxial connectors; data cables; ethernet cables; fibre optic cables; fibre optic couplings; fiber optics; fibres for the transmission of sounds and images; microphone cables; optical cables; optical connectors; optical fiber cables; optical fiber connectors; optical fibres; optical switches; USB cables; video cables; apparatus, instruments and cables for electricity; electrical and electronic components; adapter plugs; coaxial cable connectors; covers for electric outlets; distribution boxes for electrical power; electric connections; electric contacts; electric couplings; electric plugs; electric switches; electric wires and cables; electrical connection boxes; electrical connector housings; electrical connectors; electrical sockets; fibre optic panels; joint boxes for housing cable joints; moveable sockets; multi-outlet socket blocks; plug adaptors; plug connectors; power connectors; power distributing boxes; electric cables and wires; cables for optical signal transmission; connection cables; connections for electric lines; electric cables; electric extension cables; electronic cables; guitar cables; power cables; tags for identifying electric cables; wire connectors [electricity]; electrical circuits and circuit boards; audio circuit boards; circuit boards provided with integrated circuits; digital sound processors