Analogue to digital converters; Audio amplifiers; Audio cables; Audio interfaces; Cable television converters; Computer network adapters, switches, routers and hubs; Computer network hubs; Computer network hubs, switches and routers; Electrical adapters; Electronic switchers for audio and video signals; Home networking modules comprising electronic components being electric cabling panels, voice and data boards, and video splitters and associated wiring; KVM switches; Matrix switchers for aud...