Answer: broadband

AnswerCrossword Clue
BROADBANDFiber optic transmission, e.g.
BROADBANDKind of network
BROADBANDAid in fast networking
BROADBANDHigh-speed Internet access
broadbandOf or using signals over a wide range of frequencies in high-capacity telecommunications, esp. as used for access to the Internet
broadbandacross, involving, or designed to operate across, a wide range of frequencies / a broadband service