Amplifiers; Audio-video receivers; Digital to analog converters (DACs); Electric cables; High definition multimedia interface splitters; Matrix switchers for audio and video signals; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repea...